Facing a disciplinary hearing that could have driven him off of the police force, Deputy Superintendent Marlin Defillo chose to resign on Thursday, July 34, 2010..The 32-year NOPD veteran was scheduled to attend a hearing on Friday, July 22, at which Chief Ronal Serpas was to meet out Defillo’s punishment over his failure to investigate allegations that NOPD officers killed a man and buried his body in the aftermath of Hurricane Katrina..