Winnipeg man kills four relatives before taking his own life at home in Oshawa, Ont.

Police at a home on Parklane Ave in Oshawa after five people were fatally shot and a sixth wounded on Sept 4, 2020. Photo: Durham Regional Police/Twitter.

Police in Ontario have confirmed the identity of the lone gunman who killed four family members in their Oshawa home and wounded a fifth before taking his own life on Friday morning.

According to a media release by the Durham Regional Police Service, on September 4, at approximately 1:20 a.m., officers responded to a residence on Parklane Avenue after numerous reports of gunshots.

Members of the Tactical Support Unit entered the residence to find five deceased people inside and one adult female who was alive but suffering from a gunshot wound. A 50-year-old woman was rushed to hospital, where she was treated for a non-life-threatening injury.

Investigators believe, Mitchell Lapa, 48, from Winnipeg, Manitoba, was the sole shooter in the incident and he died as a result of a self-inflicted gunshot wound.

Police say Lapa is a relative of the family and was an uninvited person to the home.

A truck located at the scene with Manitoba license plates is registered to Lapa.

Truck with Manitoba plates parked on street where 5 killed in Oshawa. Photo: CTV News Winnipeg/Facebook.

The ages of the deceased victims have not been released but police confirmed that two were under the age of 18.

The Homicide Unit is still investigating the motive for the shooting and will release the identity of the other deceased parties after a post mortem is conducted and all applicable next of kin are notified.

Anyone with information about the investigation is asked to contact police at 1-888-579-1520 ext. 5319, or Crime Stoppers at 1-800-222-8477 (TIPS).

The story will be updated when more details are known.