John Patrick Hackett was found dead in his apartment on Gold Street in Mackay around 7.18pm on Saturday, November 9 following a welfare check by family members.
Police are appealing for help after a post-mortem examination showed evidence of an assault.
Officers want speak to anyone who may have seen “any interaction or altercation” between Hackett and another person on the afternoon or evening of Tuesday, November 4.
They also want anyone with information, CCTV or dashcam footage of that day around Gold Street to get in touch.
