Mechanical Problem Caused Deadly San Mateo Bridge Limo Fire

<div>The California Highway Patrol on Monday said a <a href="https://webmail-ca1.cbs.com/Owa/redir.aspx?C=wd0Jlb8OXkqCNTj5-GhVNnAtj-zUcNAIo3NWC6WHLmcqwwVqxQ8h-WtXCXBQ6hNgD9es0KO24hU.&URL=http%3a%2f%2fsanfrancisco.cbslocal.com%2ftag%2fdeadly-limousine-fire" target="_blank">limousine fire on the San Mateo-Hayward Bridge that killed five nurses</a> trapped in the back was sparked by a mechanical problem. Mark Sayer reports. </div>