The coroner has ruled the shooting on Erie's west side Monday night as a homicide after an autopsy was completed Tuesday afternoon.

The victim - a 51-year-old man - died from a single gunshot wound to the chest, according to Erie County Coroner Lyell Cook.

His identity has not been released because police are still trying to find and notify family, Cook said.

Police were called for reports of a shooting victim in the 400 block of Chestnut St. just before 10:30 p.m.

The victim was found in an upstairs apartment. He was pronounced dead a short time later.

Police said the suspect came to the apartment and shot the victim.

Investigators questioned several people who were inside the home at the time, but no one has been taken into custody.

The Erie Police Department's ID Unit was on the scene most of the day Tuesday, collecting evidence from inside the home, "It's very early in the investigation so we have a lot of investigating to do, and a lot of information to be gained from the interviews, contrasted with the physical evidence at the scene." said Erie Police Deputy Chief Mike Nolan.

Several neighbors tell Erie News Now, there was suspected drug activity at the home for some time. The possibility of a drug connection is part of the police department's ongoing investigation.