May 20, 2012 8:32 pm Mayoral Candidates Explain Their Resumes Mayoral candidates Nathan Fletcher, Bonnie Dumanis, Carl DeMaio and Bob Filner and debate how their leadership qualities and experience will come in if they are elected mayor. US & World Videos 2:41 San Diego lifeguards describe fighting Oceanside Pier fire 2:32 Students and staff confused after the University of Saint Katherine closes abruptly 2:58 NASA researchers aim to enhance safety, flight operations in wildland firefighting 2:47 San Diego welding students recreate replica of historic Black Family Statues 4:29 Escondido woman warned husband may be a killer: Dateline