ANNAPOLIS, MD - FEBRUARY 9: Rich Leotta holds a photo of his so

ANNAPOLIS, MD - FEBRUARY 9: Rich Leotta holds a photo of his son, Montgomery County Police officer Noah Leotta while speaking at a MADD press conference to release a nationwide report showing that ignition interlock devices save lives and stops alcohol-impaired drivers from starting their cars dedicating the report to Montgomery County Police Officer Noah Leotta on February 10, 2016 in Annapolis, Md. Officer Leotta was killed in December when a drunk driver struck him while he was conducting a traffic stop involving a suspected drunk driver. Noah's parents, Rich Leotta and Marcie Goldman were at the press conference pushing for Maryland lawmakers to make the interlock devices mandatory for convicted drunk drivers. (Photo by Ricky Carioti/ The Washington Post via Getty Images)