QUEENS, NY — A 36-year-old man shot to death inside a New York City apartment building has been identified, police said on Wednesday.

Officers found Samuel Alston with a gunshot wound to the back inside 36-11 12 Street in Queens around 3:45 p.m. on Tuesday.

The 36-year-old was taken to New York Presbyterian-Weill Cornell Medical Center, initially in critical condition. He was later pronounced dead.

Police are investigating what led up to the shooting. A description of a possible suspect has not been released.

No arrests have been made yet. An investigation remains ongoing.