Halifax Regional Police are looking to identify a potential witness to the homicide of Rickey Walker.
Walker was found behind John McNeil Elementary School on Sept. 1 after calling police, reporting he had been shot.
The daily email you need for
's top news stories.
READ MORE: Halifax police officially rule Dartmouth shooting a homicide, identify victim
He was taken to hospital, where he was pronounced dead.
His death was later ruled a homicide by the Medical Examiner.
Officers believe the man in photos they’ve released was in the area the time the shooting happened, and are hoping to speak with him.
Police ask that this man, and anyone else who might have information about the incident, contact them at 902-490-5020 or anonymously contact www.crimestoppers.ns.ca.