CORONADO, Calif. (NNS) -- A USS Carl Vinson (CVN 70) Sailor helped prevent a suicide attempt on the Coronado Bay Bridge, June 19.Aviation Boatswain's Mate (Fuel) 1st Class (AW/SW) David Lawrence, Air Department's V4 Division maintenance leading petty officer, first responded to a 60-year-old man's suicide attempt approximately 4 a.m. after pulling over to assist with what he thought would be a fl…