a microphone picked up comments by david chalian as he waited to get ready for coverage. he said they were happy to have a party with black people drowning. a reference to the hurricane that was hitting new orleans. yahoo and david chalian apologized apologized for the remarks. >>> at uc davis, break through technology to save a dog's life. >> it warmed up today, especially inland but the fog will return, i will let you know how it will have an impact on the forecast for the next couple of days. >>> happening now a gas leak in napa has residents sheltering in place. a construction crew ruptured a natural gas line. there are no evacuations right now and pg&e expects to have the area back open by 7:00 p.m. tonight. >>> at uc davis today veterinarians saved a dug's life. ktvu's health and science editor john fowler explains how it may help humans. >> reporter: this is a big advance that uses the bodies ability to regrown bone, in this case jawbone. >> reporter: he said this dog wasn't himself. he had a hard time chewing. >> i fed he had a bad -- figured he had a bad tooth. >