The police commissioner identified the second gunman killed in the shooting early Sunday as Marvin St. Louis, 19, a Brooklyn resident with no known criminal record. Police said a third man shot dead, Amadou Diallo, 27, of Manhattan, was an innocent bystander inside the club.

A fatal Crown Heights shooting prompted New York City mayoral candidates to clash over crime policies as city grapples with recent surge in gun violence incidents.

New York City mayor's race candidates honed in on fighting crime and prostitution after the Brooklyn lounge shooting took quality of life issues front and center. CBS News New York's Marcia Kramer reports.