John David Jamieson, 44, died from gunshot wounds after he and two others attempted to rob an occupant at a Caledon Street home in January 2020.
Isiah Alvarado pleaded guilty to possession of a loaded prohibited firearm, possession of a firearm while prohibited from doing so, breaching a recognizance and possession of a controlled substance Nov. 12.
Ontario Superior Court Justice Michael Varpio sentenced Alvarado March 31.
Alvarado received 570 days credit for time served and a firearms prohibition for life, according to court documents.