Patrolman Connelly was shot and killed while investigating a complaint of a illegal gambling club at 4209 Fifth Avenue, Brooklyn. Patrolman Connelly responded to the location with three other patrolman. When they arrived they heard loud noise coming from hallway of the building. The three officers entered the building, bit Patrolman Connelly remained outside. He raided the window of one apartment and placed three men under arrest for gambling.
One of the suspect attempted to escape and drew a revolver and shot and killed Patrolman Connelly.
Patrolman Connelly was assigned to the 10th Division.p