Four dead in O.C.: No motive yet in slaying, deadly carjackings

Orange County sheriff's officials said they don't know what prompted a series of shootings across multiple cities early Tuesday morning that left at least four people dead and others wounded.

Authorities believe the violence began in Ladera Ranch, south of Mission Viejo.

The first call came at 4:45 a.m. reporting a shooting on Red Leaf Lane, where deputies discovered a woman shot dead at the scene.

The suspect, described as a man in his 20s, fled the area in an SUV.

MAP: Orange County shootings

Sheriff's Department spokesman Jim Amormino said “multiple incidents” then occurred in Tustin and another at the Santa Ana border before the suspect apparently shot and killed himself in Orange.

“There’s a lot to sort out,” he said.

Tustin Police Lt. Paul Garaven said the suspect attempted to carjack multiple vehicles in Tustin, with  each shooting occurring a few minutes apart.

Police received a report about 5:30 a.m. of a carjacking near Red Hill Avenue and Nisson Road near the 5 Freeway in Tustin, Garaven said.

The carjacking suspect opened fire and wounded a bystander, he said.

Soon after that, another carjacking was reported near the 55 Freeway, Garaven said. The victim of that carjacking was killed, Garaven said. A body lay covered by a yellow tarp on Village Way near the McFadden Avenue freeway entrance.

Another shooting was reported on Edinger Avenue near the Micro Center in Tustin, Garaven said. Officers confirmed that another carjacking had taken place, he said.

One person was killed and another was taken to a hospital. Officers spotted the suspect in a stolen vehicle, followed him into the city of Orange and initiated a traffic stop near the intersection of East Katella Avenue and North Wanda Road, Garaven said.

The suspect then shot and killed himself, Garaven said. Garaven said there is “no threat to the community” because the suspect is deceased.

Bill Myers, who works at Allied Refrigeration at Edinger Avenue in Tustin, said he passed numerous police vehicles on his way to work early Tuesday.

The Micro Center, across the street from Allied Refrigeration, was roped off, and police were at the scene, Myers said.

Myers arrived at work at about 6:20 a.m. and said there was "a bunch of activity going on. It was pretty crazy."  

kate.mather@latimes.com

hailey.branson@latimes.com

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India Ink: Image of the Day: Feb. 18

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Chaz Bono: How I Lost 43 Lbs. - and Hope to Lose More

By Dahvi Shira

02/18/2013 at 01:00 PM EST

Chaz Bono, before and after losing weight

Courtesy CBS Television Distribution

Chaz Bono's 2013 has gotten off to a healthy start!

The former Dancing with the Stars contestant, 43, has already dropped 43 lbs. since announcing his public mission to lose 50 lbs. beginning in mid-November.

He's now upped his goal to dropping a total of 80 lbs.

"I've been sticking to a really strict diet," he tells PEOPLE. "It's not any type of starvation thing. I'm just cutting out a lot of stuff and eating primarily protein and vegetables and fruit."

Bono, who weighed 250 lbs. pre-diet, first addressed his goal publicly with Dr. Travis Stork on an episode of The Doctors, after being approached by the show to get help.

"That episode was the most uncomfortable I've ever been on television in my life," Bono admits. "I had been wanting to lose weight. It was something I had been trying to do and failing at. This opportunity just kind of came in, and my initial reaction was 'absolutely not.' And after that, the more I thought about it, I realized I've been wanting to deal with this issue and somebody's willing to help me do it, so I decided to throw my pride away and get help."

The initial weight-loss process actually wasn't too challenging. He shed the pounds with the help of exercise and the Freshology delivered-meal plan.

"It hasn't been that long, but when you're a guy and you've got a lot of weight to lose, the initial stuff comes off pretty easily," says Bono, who'll return to The Doctors Wednesday to show off his weight loss. (check local listings). "You start to see results and you want to keep going. It's not to say you don't have cravings sometimes, but I'm very happy with how I'm looking and feeling. Especially when I'm traveling or I have to go out to eat or whatever, it's actually kind of easier than I thought to [eat healthy], so that's been good."

But now, the pounds aren't coming off as easily.

A Challenging Plan

"It's getting harder," he explains. "I'm just kind of at a little plateau right now, which I think is pretty normal, according to my doctor. The weight was falling off at first, and now it's just coming off slower. The smaller you are, the harder it is to lose weight. The last 10 or 20 lbs. are really hard to get off. I would like to lose more than that. I'm still dropping, but I'm just not dropping like I was in the beginning, which was about 4 lbs. a week."

Despite the lull in his weight loss, Bono is continuing along strong with his journey.

"There haven't really been any bad parts to this so far, except certain stuff that I miss eating," he says. "But ultimately, I would much rather look and feel better than eat those things. Everything else has been really great. I feel better and when I look in the mirror, I like what I see better."

But when it comes to offering guidance to others going through the same thing, Bono will steer clear.

"I don't want to ever be that guy [to give advice]," he says. "I've struggled with weight my whole life. I don't ever want to be the guy to say, 'Just do this.' For me, it was finally getting to a place where I was willing to do whatever it took to deal with this. When you get to that point, then whatever way you choose to do it, it's going to work."

And Bono is adamant about keeping it off.

"I'm willing to kind of never eat the things I like again," he said with a laugh. "Never say never, and I know it happens a lot, but I really want to do everything I can to avoid gaining it back. I'm not going into it thinking I'm going to do that. I'm going into it thinking I'm too old to [expletive] around with that. I need to keep my weight down, moving forward, in order to be healthy."

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Study: Better TV might improve kids' behavior

SEATTLE (AP) — Teaching parents to switch channels from violent shows to educational TV can improve preschoolers' behavior, even without getting them to watch less, a study found.

The results were modest and faded over time, but may hold promise for finding ways to help young children avoid aggressive, violent behavior, the study authors and other doctors said.

"It's not just about turning off the television. It's about changing the channel. What children watch is as important as how much they watch," said lead author Dr. Dimitri Christakis, a pediatrician and researcher at Seattle Children's Research Institute.

The research was to be published online Monday by the journal Pediatrics.

The study involved 565 Seattle parents, who periodically filled out TV-watching diaries and questionnaires measuring their child's behavior.

Half were coached for six months on getting their 3-to-5-year-old kids to watch shows like "Sesame Street" and "Dora the Explorer" rather than more violent programs like "Power Rangers." The results were compared with kids whose parents who got advice on healthy eating instead.

At six months, children in both groups showed improved behavior, but there was a little bit more improvement in the group that was coached on their TV watching.

By one year, there was no meaningful difference between the two groups overall. Low-income boys appeared to get the most short-term benefit.

"That's important because they are at the greatest risk, both for being perpetrators of aggression in real life, but also being victims of aggression," Christakis said.

The study has some flaws. The parents weren't told the purpose of the study, but the authors concede they probably figured it out and that might have affected the results.

Before the study, the children averaged about 1½ hours of TV, video and computer game watching a day, with violent content making up about a quarter of that time. By the end of the study, that increased by up to 10 minutes. Those in the TV coaching group increased their time with positive shows; the healthy eating group watched more violent TV.

Nancy Jensen, who took part with her now 6-year-old daughter, said the study was a wake-up call.

"I didn't realize how much Elizabeth was watching and how much she was watching on her own," she said.

Jensen said her daughter's behavior improved after making changes, and she continues to control what Elizabeth and her 2-year-old brother, Joe, watch. She also decided to replace most of Elizabeth's TV time with games, art and outdoor fun.

During a recent visit to their Seattle home, the children seemed more interested in playing with blocks and running around outside than watching TV.

Another researcher who was not involved in this study but also focuses his work on kids and television commended Christakis for taking a look at the influence of positive TV programs, instead of focusing on the impact of violent TV.

"I think it's fabulous that people are looking on the positive side. Because no one's going to stop watching TV, we have to have viable alternatives for kids," said Dr. Michael Rich, director of the Center on Media and Child Health at Children's Hospital Boston.

____

Online:

Pediatrics: http://www.pediatrics.org

___

Contact AP Writer Donna Blankinship through Twitter (at)dgblankinship

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Attorney killed wife on Italian cruise for her money, police say

A former Orange County attorney allegedly killed his ex-wife for financial gain in 2006 by strangling her and throwing her overboard while on a cruise along the Italian coast, authorities said.

Lonnie Kocontes, 55, a former Mission Viejo resident, was arrested Friday at his home in Safety Harbor, Fla., in connection with the death of his former wife, Micki Kanesaki, 52, of Ladera Ranch, authorities said. He is charged with one felony count of special circumstances for financial gain.

If convicted, he faces a maximum life sentence in state prison without the possibility of parole and is eligible for the death penalty, authorities said. Kocontes, who is being held without bail, also faces extradition proceedings at a date to be determined.

He is accused of financially benefiting from Kanesaki’s death because he was the beneficiary of several of their bank accounts and property and was receiving the proceeds from the sale of their home, authorities said.

The couple divorced in 2001 and were in the midst of a court battle when they decided to put aside their rancor and take a Mediterranean vacation together.

Kocontes is suspected of killing his wife on the night of May 25, 2006, or the morning of May 26, by strangling her and throwing her body overboard, authorities said.

At the time, Kocontes reported his wife missing. He told authorities that the couple had retired to bed when about 1 a.m. Kanesaki stepped out to get a cup of tea to help her relax and never returned.

Her body was found on the morning of May 27 by the Italian coast guard, floating in the sea near Reggio di Calabria.

"I wish I knew what happened," Kocontes was quoted as saying at the time. He told authorities that his former wife had previously talked of suicide.

But an autopsy revealed Kanesaki had been strangled, authorities said.

In 2008, Kocontes is accused of attempting to transfer $1 million between various banks accounts with his new wife, Katherine, authorities said. The FBI began investigating the money transfers for possible illegal activity and the U.S. attorney’s office ultimately seized the money from Kocontes’ bank account.

The Orange County district attorney’s office was contacted and subsequently the Sheriff’s Department relaunched its investigation, authorities said.

On Wednesday, the district attorney filed its murder case against Kocontes.      

The FBI and the Orange County Sheriff's Department are continuing the investigation.

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-- Andrew Blankstein

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Letter From Washington: A Sensible Deal Can Avert a 'Sequester' Disaster

WASHINGTON — Democrats and Republicans in Washington agree: It would be a disaster if the “sequester,” with its more than $1 trillion of cuts to U.S. defense and domestic spending, took effect on March 1, as scheduled.

Defense Secretary Leon E. Panetta says the reductions to the Pentagon budget would undermine national security; the cuts to already pared-down domestic spending will set back critical needs like cancer research; Head Start, the preschool program for low-income children; and funding for the Border Patrol. The U.S. economic recovery would be impeded, at a cost of as many as 750,000 jobs.

President Barack Obama says the cuts “are a really bad idea.” In a rare display of accord, the House speaker, John A. Boehner, says the “meat ax” approach would “weaken” the nation’s defense. Mr. Obama and Mr. Boehner were two of the authors of the 2011 sequester agreement, figuring a sensible alternative would have emerged by now.

It has not, and the sequester could kick in on March 1, even if only temporarily. It is a textbook case of Washington dysfunction.

Both sides created this debacle, but there is no equivalency of blame today. Any alternative must emphasize cuts in mandatory entitlement programs and add revenue. Mr. Obama, publicly and privately, has left no doubt that he will surrender the Democrats’ political trump card and accept cuts in entitlement programs like Medicare, which offers health coverage to the elderly and disabled. Republican leaders insist that they will not give any ground on new revenue, without which there can be no deal.

An impasse would be unsettling to markets and the economy in the long run, even if deficit hawks exaggerate the severity of the crisis.

“The 10-year budget outlook remains tenuous,” says Bill Gale, director of economic studies at the Brookings Institution. “Even if seemingly everything goes right — in economic terms and political terms — we are still on the edge of dangerously high debt and deficit levels.”

It is not hard to devise a feasible alternative, if the irrational politics are put aside. First, any deficit-reduction plan should wait two years. That is because, as broke as Washington is, the deficit has already been narrowed by almost $2.5 trillion over the coming decade. In the short term, the government needs to bolster the shaky recovery by spending more on infrastructure and other projects.

Then, it should put in place a long-term $1 trillion deficit-reduction package, half of which is achieved through entitlement cuts, one-third through tax increases and the rest by shrinking discretionary programs, chiefly defense, which are funded through annual appropriations from Congress. That would send an encouraging sign to markets and help the economy, but only if it is a long-term plan, rather than the one-year fix that Senate and House Democrats are proposing.

Entitlements or mandatory programs like Medicare and Social Security, the government retirement system, make up almost 60 percent of the U.S. budget and are the engine of chronic deficits. Getting $500 billion over 10 years would not be pain-free, though it does not have to hurt those who can least afford to sacrifice.

The president has said he would go along with the scope of the Bowles-Simpson deficit commission’s proposed cuts to Medicare. That is about $350 billion. It would not require cuts for the most needy but would contain a means test for more affluent senior citizens. A sensible deal would not increase the eligibility age and would introduce more stringent cost controls and hit up drug companies for a little more.

Half the remaining savings could come from changing the formula for the cost-of-living increases for Social Security and other inflation-adjusted entitlements. That is a realistic proposal if protections are carved out for the very poor and the very elderly. The Center for American Progress has offered workable specifics. The rest could come from cutting agricultural subsidies and other entitlement programs.

The White House would buy this, and it has been the dream of Republicans for years.

On taxes, Republicans contend that the fiscal cliff deal in January, which raised taxes on the wealthy by $600 billion, means any further revenue-raisers are off the table.

A number of party leaders also pay lip service to the Bowles-Simpson recommendations, which proposed $1 of new revenue for every $2 of spending cuts, after eliminating former President George W. Bush’s high-end tax cuts. If these Republicans have their way and the sequester or any alternative to it is exclusively spending cuts, that ratio would be more than four to one.

The easiest way to get those revenues would be a plan resembling the administration’s proposal to limit deductions to the 28 percent rate and then exclude charitable deductions from that cap. That would raise more than $300 billion.

The other Republican argument is that any tax changes should await broad tax reform. But limiting deductions would not narrow their options or dash their hopes of using changes to the tax code as a vehicle for lowering rates.

There are endless possibilities for curbing tax breaks in a revenue-neutral measure that also lowers rates, such as scaling back big-ticket items like the home mortgage deduction, the health care exclusion or the preferential treatment for capital gains. Other changes are politically appealing, like ending the carried-interest loophole for rich investors or the tax breaks for the oil and gas industries.

What should not be cut is nondefense discretionary spending, like veterans’ programs, medical and scientific research and education. Even without the sequester, these programs are headed toward their lowest level, as a percentage of the economy, since the Eisenhower administration.

An entitlements and revenue-based deal, however, would approximate the Bowles-Simpson targets, and engender confidence in markets and businesses. The politicians could then turn to tax reform, immigration, gun violence, maybe a modest climate-change measure, and substantive oversight.

As a bonus, a successful deal might also lessen public cynicism about Washington.

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Carrie Underwood's Light-Up Dress Makes Readers Say 'Wow'

By Andrea Billups

02/17/2013 at 12:35 PM EST

What's on the minds of PEOPLE readers this week? We love knowing your response to the news – and, as always, you had lots to say about all of our stories.

From a heartfelt (and funny) "baby announcement" for a 13-year-old to your sadness over the shocking news that Olympian Oscar Pistorius has been charged in South Africa with allegedly murdering his model girlfriend, readers responded with what made them angry, happy and also laugh out loud this week.

Check out the articles with the top reactions on the site this week, and keep clicking on the emoticons at the bottom of every story to tell us what you think.

Kelli Higgins and her husband opened their hearts big enough to adopt son Latrell and his sister Chanya in 2011. After the parents expressed sadness that they'd never have baby photos of the pair to add to their family album, Chanya, 12, suggested a photo shoot that ended up with photos of Latrell, 13, swaddled in blankets much like a newborn.

Readers were wowed by country singer Carrie Underwood's princess-style gown at the Grammy Awards, worn during her performance of "Blown Away." Not only was the silver gown stunning, it also provided a surprise light show, glowing with special effects that dazzled the audience with a visual surprise.

Our readers joined the royal family in expressing outrage after photos were published of the Duchess of Cambridge wearing a bikini – and showing off her small baby bump – as she happily vacationed on the private island of Mustique last week with Prince William. A spokesman for the couple at St. James Palace, who called the photos a disappointment, told PEOPLE: "This is a clear breach of the couple's right to privacy."

Readers were saddened by the shocking news that South African sprinter Oscar Pistorius, known as a hero around the world as the "Blade Runner," has been charged with murder in the death of his model girlfriend Reva Steenkamp, 24. Pistorius, 26, wept in court Friday as charges were read.

Readers were amused by news that one of The Bachelor's most colorful contestants this season is now allegedly engaged. Tierra LiCausi, 24, proved much-watch TV as she schemed, fought and cried in a failed effort to win Sean Lowe's love.

Check back next week for another must-read roundup, and see what readers are reacting to every day here.

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UN warns risk of hepatitis E in S. Sudan grows

GENEVA (AP) — The United Nations says an outbreak of hepatitis E has killed 111 refugees in camps in South Sudan since July, and has become endemic in the region.

U.N. refugee agency spokesman Adrian Edwards says the influx of people to the camps from neighboring Sudan is believed to be one of the factors in the rapid spread of the contagious, life-threatening inflammatory viral disease of the liver.

Edwards said Friday that the camps have been hit by 6,017 cases of hepatitis E, which is spread through contaminated food and water.

He says the largest number of cases and suspected cases is in the Yusuf Batil camp in Upper Nile state, which houses 37,229 refugees fleeing fighting between rebels and the Sudanese government.

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Hollywood directs its star power toward a campaign closer to home

A stylish crowd waited beneath a flashing marquee outside the Fonda Theatre. "Appearing tonight!" the sign read. "Eric Garcetti 4 Mayor."

In a city where political campaigns are typically waged at neighborhood meetings, not Hollywood concert halls, last week's star-studded fundraiser for Garcetti highlighted the entertainment industry's outsized role in this year's mayoral race. Talk show host Jimmy Kimmel started the show with a stand-up routine and musician Moby got the crowd of several hundred dancing. Actress Amy Smart urged everyone to tweet about the campaign, and actor Will Ferrell beamed in via video to pledge that if Garcetti is elected, every resident in the city will receive free waffles.

Hollywood is taking to City Hall politics like never before, veterans say, with power players such as Steven Spielberg leading a major fundraising effort and celebrities such as Salma Hayek weighing in via YouTube. A Times analysis of city Ethics Commission records found that actors, producers, directors and others in the industry have donated more than $746,000 directly to candidates, with some $462,000 going to Garcetti and $226,000 to City Controller Wendy Greuel.

Several of Greuel's big-name celebrity supporters, including Tobey Maguire, Kate Hudson and Zooey Deschanel, recently hosted a fundraiser for her at an exclusive club on the Sunset Strip. She is getting extra help from Spielberg and his former partners at DreamWorks, Jeffrey Katzenberg and David Geffen, who have given at least $150,000 and are raising more for an independent group funding a TV ad blitz on her behalf.

The burst of support is coming from an industry often maligned for paying little attention to local politics.

While Mayor Antonio Villaraigosa is often photographed at red carpet events and former Mayor Tom Bradley was famously close to actor Gregory Peck, serious Hollywood money and star power has tended to remain tantalizingly out of reach for local politicians. "It's no secret that the entertainment industry has never really focused on the city that houses it," said Steve Soboroff, who ran for mayor and lost in 2001.

Political consultant Garry South, who has worked on mayoral and gubernatorial campaigns, recalled having to pay celebrities to appear at fundraisers in the past. Hollywood has long embraced candidates in presidential and congressional elections, South said, in part because they have more influence over causes favored by celebrities.

"The mayor of L.A. is not going to get us out of Afghanistan. The mayor of L.A. is not going to determine whether or not gay marriage is legal," South said. "The local issues are just not as sexy."

But this year, if you're a part of the Hollywood establishment, chances are you've gotten invitations to fundraisers for Greuel, Garcetti or both.

The difference this time is that both candidates have worked to cultivate deep Hollywood connections, observers say. Garcetti has represented Hollywood for 12 years, overseeing a development boom and presiding over ceremonies to add stars — Kimmel recently got one — on the Hollywood Walk of Fame. Greuel is a former executive at DreamWorks, where she worked with the moguls who founded the studio. She has also served for 10 years on the board of the California Film Commission.

City Councilwoman Jan Perry and entertainment attorney Kevin James have reaped far less financial support from the industry, records show, although each claims a share of celebrity endorsements. Dick Van Dyke sponsored a fundraiser for Perry and Oscar winner Dustin Lance Black has given to James.

Agent Feroz Taj, who attended Garcetti's Moby concert, said a flurry of activity around the race, involving friends and colleagues, piqued his interest. He said he's never been involved in a political campaign, but now when he receives invites to Greuel events, he says he is supporting Garcetti.

Industry insiders have been buzzing about a letter they say is being circulated by an advisor to Spielberg and Katzenberg, urging people to give $15,000 to an independent group supporting Greuel. The DreamWorks founders have made a difference for Greuel in previous elections. In 2002, financial support from the studio executives and their allies helped her squeak out a victory in one of the closest City Council races in history.

This time around, billionaire media mogul Haim Saban is getting involved, providing his Beverly Hills estate for a Greuel fundraiser featuring U.S. Sen. Barbara Boxer (D-Calif.). Greuel has also received contributions from Tom Hanks and actresses Mariska Hargitay and Eva Longoria, neither of whom have given to a local political campaign before, according to records.

Garcetti, on the other hand, has picked up contributions from former Disney Chief Executive Michael Eisner, as well as newcomers to local politics Jake Gyllenhaal and Hayek, who once traveled with Garcetti on a global warming awareness mission to the South Pole. The actress released a video endorsing Garcetti and thanking him for helping her find her wallet in the snow.

Campaign consultant Sean Clegg linked the industry's burgeoning interest in mayoral politics to President Obama's election, which he said had "a catalyzing effect on Hollywood." Indeed, many Greuel and Garcetti supporters were Obama backers. Hayek hosted a fundraiser for Obama and Longoria served as a co-chair of his reelection campaign.

Clegg is a consultant for Working Californians, an independent campaign committee that hopes to raise and spend at least $2 million supporting Greuel, with donations from Spielberg and others in Hollywood, as well as the union representing Department of Water and Power employees.

Generally, Clegg argued, Hollywood money is different than the special-interest funding campaigns collect. "Money is coming out of the entertainment industry more on belief and less on the transactional considerations," he said.

But Raphael Sonenshein, director of the Pat Brown Institute of Public Affairs at Cal State L.A., said Hollywood's new interest in local elections may be tied to growing concerns about film production being lured elsewhere by tax incentives.

Garcetti and Greuel have both pledged to reverse job losses tied to runaway television and film production, with Garcetti touting a recent proposal to eliminate roughly $231,000 in annual city fees charged for pilot episodes of new TV shows. The number of pilots shot locally has dropped 30% in recent years, but city budget analysts say the tax break would have a minimal effect because city fees represent only a small portion of production costs.

On the council, both candidates voted to eliminate filming fees at most city facilities. Greuel tells audiences she has an insider's perspective on the industry's needs and says she will create an "entertainment cabinet" to help it thrive. "I have sat with studio heads," she said in a recent interview. "They want a city . . . that is a champion for film industry jobs in Los Angeles."

Greuel may have Garcetti beat on experience in the studio front office, but he is the only candidate with his own page on IMDb.com — a closely watched industry website that tracks individuals' film and television credits.

The councilman, a member of the Screen Actors Guild, has made several television appearances, including one for the cable police drama "The Closer." He played the mayor of Los Angeles.

kate.linthicum@latimes.com

Times staff writer Maloy Moore contributed to this report.

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Russians Seek Clues and Count Blessings After Meteor Blast

CHEBARKUL, Russia —After a brilliant flash illuminated the sky on Friday morning like a second sun, Alyona V. Borchininova and several others in this run-down little town in the rust belt of western Siberian wandered outside, confused and curious.

They followed the light’s path to the town’s lakefront, where they trudged for about a mile over the open ice until they came to a startling sight: a perfectly round hole in the ice, about 20 feet in diameter, its rim glossy with fresh ice that had crusted on top of the snow.

“It was eerie,” Ms. Borchininova, a barmaid, said Saturday. “So we stood there. And then somebody joked, ‘Now the green men will crawl out and say hello.’ ”

Russians are still coming to terms with what NASA scientists say was a 7,000-ton chunk of space rock that came hurtling out of the sky at 40,000 miles an hour, exploding over the Ural Mountains, spraying debris for miles around and, amazingly, killing no one.

As the Russian government pursued the scientific mysteries of Friday’s exploding meteor by sending divers into the inky waters of the hole in Lake Chebarkul on Saturday, residents reacted with a kind of giddy relief and humor over their luck at having survived a cosmic near miss.

NASA estimates that when the meteor entered the atmosphere over Alaska, it weighed 7,000 to 10,000 tons and was at least 50 feet in diameter, a size that strikes the Earth about once every hundred years. They said it had exploded with the force of 500 kilotons of TNT.

The shock wave injured hundreds of people about 54 miles away in the industrial city of Chelyabinsk, most from broken glass; collapsed a wall in a zinc factory; set off car alarms; and sent dishes flying in thousands of apartments. Broken windows exposed people and pipes to the Siberian winter; many residents focused Saturday on boarding windows and draining pipes, to preserve heating systems.

If pieces of meteorite reached the surface, as NASA said was likely, they fell largely into the sea of birch and pine trees of Siberia, now blanketed in snow.

Lake Chebarkul is one of four sites the government believes to felt a significant impact, the minister of emergency situations, Vladimir Pushkov, told Interfax.

As the sun rose Saturday, the snow crystals sparkling in the sun like a million tiny mirrors, steam wafted from the site, apparently related to the work of divers, but the lake yielded little to shed light on the mystery.

Mr. Pushkov later said divers found nothing on the lake bed, but did not rule out meteor shrapnel as the cause of the hole.

“Experts are studying all possible places of impact,” he said. “We have no reports of confirmed discoveries.”

The discovery of a confirmed fragment could help scientists better apprehend the composition of the meteor, perhaps shedding light on how close it was to descending further before exploding from the heat, or of hitting the surface, potentially causing vastly more casualties in this region of military and industrial towns, a major nuclear research site and waste repository and other delicate infrastructure.

In Chelyabinsk, the worst hit town, most who had sought medical attention were released from hospitals by Saturday, the Ministry of Health reported. A total of 1,158 people, including 298 children, asked for medical assistance. Of these 52 people were hospitalized. By Saturday afternoon, 12 adults and three children remained in hospitals.

Health officials evacuated to Moscow a woman who broke two vertebrae after falling down a flight of stairs. One man’s finger was cut off by broken glass.

Overshadowing these misfortunes, a fourth-grade teacher in Chelyabinsk, Yulia Karbysheva, was being hailed as a hero for saving 44 children from glass cuts by ordering them to crawl under their desks after she saw the flash. Having no idea what it was, she executed a cold war-era duck-and-cover drill, with salutary results.

Ms. Karbysheva, who remained standing, was seriously lacerated by glass that severed a tendon in her arm, Interfax reported; not one of her students suffered a cut.

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