Durham Regional Police say the death of a man in North Pickering has now been declared as a homicide.
25-year-old, Claren Troy Middleton was found with a gunshot wound in a field near Highway 7 and Sideline 4.
A person walking in the area discovered his body on Friday morning.
Police are appealing for witnesses to come forward.
Anyone with information is asked to call Durham Regional Police or Crime Stoppers.