Homicide: Life on the Street Season 3 Episode 14

Bolander has a relapse. The detectives sound off to the local news about the shooting. Apartment 201 is opened up and the occupant, Gordon Pratt, is a gun freak who once tried to be a cop. Russert and Howard declare a truce. They find the shooter, but lack of a weapon gets him released; later he is found with a bullet in his head.