NEW YORK (AP) — Officer Brian Moore, the son, nephew and cousin of police officers, had already started carving out a promising career for himself at the New York Police Department, making more than 150 arrests and earning service medals in less than five years on the job. Moore and his partner were in plainclothes and in an unmarked police car when they approached Demetrius Blackwell in a quiet Queens neighborhood after they saw him adjusting his waistband, a move that made them suspicious he had a handgun, authorities said. The officers pulled up next to Blackwell, 35, and exchanged words before the man suddenly turned, pulled out a weapon and fired at least twice at them, striking Moore in the head and face, according to court documents. Investigators discovered the five-shot silver Taurus used in the shooting under a box near a backyard grill along the route Blackwell fled following the shooting, Chief of Detectives Robert Boyce said. Moore is the first city officer to be killed on duty since two uniformed police officers were slain in December in Brooklyn.