NEW YORK - An NYPD officer from Long Island is recovering from a shooting that happened on the job. Officer Brian Groves, of Patchogue, was shot as he chased a man with a gun in the stairwell of a Lower East Side housing project at around 3:50 a.m. today. Police say the suspect is still at large. Police Commissioner Ray Kelly held up Grove's vest at a press conference today, displaying a bullet hole that would have gone right through his heart. He says the vest saved the Patchogue dad's life. Officials say Groves and his partner were investigating some reported drug deals in the complex's stairwells when the incident happened. Groves was chasing a suspect down the stairs when he turned and opened fire. Groves returned fire four times, but it's not clear if the suspect was hit. Mayor Michael Bloomberg says he's angry that the incident follows a long string of recent police shootings in the city.