Toronto Police say Rampreet (Peter) Singh had been living under a bridge on the West Humber Trail in recent months.
On Monday morning, the man in his late 30s was found dead on a footpath under the Highway 27 Bridge. Police say he had suffered clear trauma.
The horrible discovery was made by a jogger passing through.
Police say it's a busy area, heavily traveled by pedestrians, cyclist and rollerbladers.
They're asking anyone who saw or heard anything in the area between midnight at 7 a.m. Monday to give them a call.
Anyone with information is asked to contact police at 416-808-7400 or Crime Stoppers anonymously at 416-222-TIPS (8477).