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CORONADO, Calif. (KGTV) -- Coronado Lifeguards confirmed a shark sighting on Coronado Beach Tuesday afternoon. According to a message posted on Facebook by police, the 12-foot-long white shark was spotted just off the shore of in the North Beach area just before 2 p.m. Lifeguards posted warning signs shortly after the sighting to let beachgoers know about the sighting. Lifeguards chose not to close the beach because the shark was not seen "engaging with anyone in the water.""The lifeguard was out on a paddle board about 100 yards from the shoreline, just past the surf in 6 to 8 feet of water, just before 2 p.m. when he saw the shark appear next to him. It was larger than his 11-foot paddle board," the department said. Watch Sky10 video over Coronado Beach after the sighting:“Under the agreed upon protocol, the City is not required to close the beach or publicly report the sightings,” said City Manager Blair King. “However, in this instance, the City feels it’s important for the community to know about this sighting and that lifeguards are carefully monitoring the waters.”Signs will remain in place for 24 hours, but could be extended if more sightings occur, King added. Lifeguard tryouts that were scheduled for May 27 have also been suspended due to the incident. 1291

CORONADO, Calif. (KGTV) -- Hundreds of thousands of students left class Wednesday morning across the country to honor the school shooting victims and march for more gun legislation.RELATED:  208

Could the no-calorie sweetener you rely on to replace sugar in your diet actually cause weight gain instead of the weight loss you were expecting?The answer may be yes, according to a new study."Artificial sweeteners are not risk-free," said Brian Hoffmann, assistant professor in the Department of Biomedical Engineering at the Medical College of Wisconsin and Marquette University, and a lead author of the study. "They are a very controversial topic when it comes to health and nutrition ... but they're so prevalent in society that I think we owe it to ourselves to try and figure out what's actually going on."Hoffmann presented his new research Sunday at the annual?Experimental Biology meeting in San Diego. Relying on rats and human cell cultures, his team identified a number of pathways linking artificial sweeteners with metabolic changes at the genetic level that could lead to diabetes and obesity. Specifically, the researchers found that three weeks of exposure to aspartame and acesulfame potassium -- two artificial sweeteners frequently combined in products such as Equal -- altered the expression of certain genes responsible for lipid metabolism in the cells of both rats and humans."Aspartame had some significant changes, and one of those was an increase in lipids in the bloodstream and a decrease in a biomolecule that is involved in clearing (lipids) from the bloodstream. And we saw the exact same thing with the acesulfame potassium," Hoffmann said."We then took those particular sweeteners and put them on endothelial cells -- the cells that line the blood vessels and would be exposed to them in the body -- and we detected a marked dysfunction, suggesting why sweeteners and diet soda have been linked to potential cardiovascular problems," he added.What was perhaps most surprising, according to Hoffmann, was that these metabolic changes did not occur in the presence of natural sugars such as glucose and fructose. This suggests that artificial sweeteners could contribute to metabolic disorders such as diabetes and obesity by an entirely different mechanism than natural sugars, he said.Artificial sweeteners appear to contribute to metabolic disorders by altering the activity of certain genes responsible for the breakdown of macromolecules such as fats and proteins, Hoffmann said. This is different from normal sugars, which contribute to cardiovascular disease through insulin resistance and by damaging the cells lining the body's blood vessels."People are generally consuming non-nutritive sweeteners believing they are a 'healthy choice,' but this may not be true," said research scientist Meghan Azad of the University of Manitoba in Winnipeg, who was not involved in the new study."This is especially important given the widespread and increasing consumption of artificial sweeteners in the general population and the increasing use of artificial sweeteners in our food supply," said Azad, who has authored a paper that reviewed a number of studies on the potential downside of artificial sweeteners on weight and health.According to Azad, over 40% of adult Americans consume no-cal sweeteners on a daily basis, and studies that measure the sweeteners in blood and urine show that many people who report not using artificial sweeteners are unknowingly consuming them.It's the latest assault in the ongoing debate over artificial sweeteners and their impact on health -- a debate that began when one of our most popular foods, sugar, turned sour in terms of health. 3527

CORONADO, Calif. (KGTV) - For the first time, a local coaching legend is speaking out, 5 months after he was banned from the campus of Coronado High.Retired water polo coach Randy Burgess is accused in a complaint of molesting a former middle school student.A mural of Burgess remains over the pool his water polo teams has used during his 3 decades of coaching, which includes nearly 20 section championships for high school boys' and girls' teams. Three of his players have competed in the Olympics.It's a legacy now in danger."My feeling is beyond frustration. A lot of hurtful things have happened," said Burgess.In May, the former middle school student - now 18 - filed a complaint with Coronado unified.In it, the teen claims during the 7th grade while playing for a club polo team that shared the pool with Burgess' teams, Burgess hugged, kissed, and eventually raped the child, in places like bathrooms and Burgess' car.The school district removed Burgess from the classroom in April, before denying the claim in May.Burgess says his attorney learned the District Attorney's office has declined to prosecute, but 10News is still working to confirm that."My immediate response was this was a case of mistaken identity.  My coaching and teaching career never paralleled with this this individual," said Burgess, who denies ever interacting with the student.Burgess tell us he doesn't know why someone would make up such a claim. He's now suing for reinstatement to teach physical education at Coronado High. In 2015, he retired from coaching, but was still mentoring coaches."I've told my children and my athletes: It's not always what happens to you, but how you handle it. I'm trying to live through those words now," said Burgess.It's not the first time Burgess has been named in a complaint.In 1995, a city supervisor sued him and the city of Coronado, claiming Burgess berated his players, made sexually inappropriate statements in front of students and sometimes allowed male swimmers to swim naked.Burgess says that case was settled with a confidentiality clause."I can only repeat to myself that the people who know me, know me, and the others will come up with their own conclusions," said Burgess.In a statement, Coronado Unified declined to discuss personnel matters, but did say "...the District takes such claims very seriously.  When the allegations became known, the District followed policy and protocol by taking immediate action to protect the safety and security of District students and staff ..."10News reached out to the lawyers representing the former student but have yet to hear back. 2638

Currently watching Zeta quickly move towards the LA coast. pic.twitter.com/D7LTXI2t9O— NWS New Orleans (@NWSNewOrleans) October 28, 2020 144