. >> vick joins us live from foster city. vick? >> this is apparently the cull prismt a limo air spring. mechanics call it a balloon. and it deflates when there is a rupture. this individual yes shows when the fire started. witnesses say the back of the lincoln town car was low to the ground while moving akrots bridge. it did carry a heavier load than unusual. nine aboard. gaeltors have been examining the charred wreck abc 7 news learned air springs ruptured setting off a domino affect that led to the fire. a garage that services limo scenes explains the sequence of events. >> these are air springs. they carried the weight of the car. so now there is one of them -- the car drops down so when it drops down it will be on this spot here. that will create a friction and heat. and could with bottomed on the ground. unfortunately the gas tank is right there. the car was a weight, fell down too hard. and ended up hitting the gas tank. and you can see there is a spark here soit catches fire. now chp figured out what caused that fire the cr

. >> vick joins us live from foster city. vick? >> this is apparently the cull prismt a limo air spring. mechanics call it a balloon. and it deflates when there is a rupture. this individual yes shows when the fire started. witnesses say the back of the lincoln town car was low to the ground while moving akrots bridge. it did carry a heavier load than unusual. nine aboard. gaeltors have been examining the charred wreck c

outside we go, live look, san mateo bridge, gorgeous shot, clear conditions, few more cars slowing us down from hayward into foster citytime to announce today's winner of the gas giveaway. you have won $700 in free gas cards from shell. we still have three winners to go. you still have a chance to get in on the action. click the like button on our facebook page. you still need to fill out that page on facebook page and announce another winner right here. >>> every day this week. you could be next. >> seven things to know before you go. >>> live look at the golden gate bridge, a gorgeous shot in terms of blue skies. tiny bit of fog and low clouds, traffic moving well. one final check on weather and traffic in a minute. >> here are seven things to know. number one, union city police are expected to release more information about a boy that was mauled to death by a dog. attack happened on elizabeth way yesterday. the dog that attacked the child is either a pit bull or pit bull mix. >> san jose police are asking for the public's help in finding a hit-and-run driver who killed a bicyclist. officers found the victim on an ov