The Winnipeg Police Service Homicide Unit is investigating the city’s first murder of 2015 after 22-year-old Dustin McKay was killed on Isabel Street Friday night.

CTV News has learned McKay was in a fight, knocked out, and then dragged into the street where he was run over.

It remains unclear whether the driver of the vehicle was an assailant in the initial attack or a different person.

"Right now, we're just reluctant to provide some of those details. There are people, key people, that we want to make contact with,” said Const. Jason Michalyshen. “Whether that may be witnesses, whether that may be a suspect or suspects, I'm not getting into those details."

Derek Letander, McKay’s uncle, says McKay had a close relationship with his family and they are devastated by his death.

“His mother is taking it very hard. And the rest of the family. He’s got four other siblings, brothers, and they’re taking it very hard right now,” said Letander.

McKay had some brushes with the law and was in jail as recently as last fall, but his uncle says he was in the process of making changes in his life.

Letander says McKay planned to finish school and take up a trade.

"He's going to be greatly missed, as you can imagine,” he said. “We never saw this coming, something this tragic that happened."

Anyone with information can call police at 204-986-6508 or Crime Stoppers at 204-786-TIPS (8477).