The San Francisco Police Department is hoping to use surveillance video footage to help identify the suspect, if any, behind the lost iPhone 5 prototype at Cava 22, the restaurant's owner Jose Valle explained this weekend. He revealed to CNET that the SFPD had visited a week ago and asked for footage from July 21 and 22, the timeframe of the missing device, to see what had happened. Valle has the video on hand and is just waiting for SFPD officers to respond.