New details are emerging about a double shooting that left one man dead in Roncesvalles Village on Sunday.

A man was fatally shot and a woman seriously injured around 5:20 a.m. on Howard Park Avenue, near Roncesvalles Avenue.

Initially it was reported that police arrived on the scene and located the man and woman nearby. Police said the man was shot in the chest, but were unclear on what exactly happened.

The Special Investigations Unit, an arm’s length agency that investigates whenever police are involved in a death or serious injury, invoked their mandate on Sunday afternoon and said they would be probing the circumstances of the shooting.

On Monday, residents and management from a nearby building identified the woman as the deceased man’s girlfriend and the mother of his two young children.

The SIU has not responded to requests for clarification about why they are investigating if the shots were fired before they arrived, however a police source told CTV Toronto that shots were fired both before and after police arrived.

According to the source, it is believed that the man shot his girlfriend in the leg, then shot himself in the chest. It is not clear whether he shot himself by accident during a struggle for the gun or if it was on purpose.

Then, when police arrived, it is believed the man shot himself again.

The incident on Sunday was not the first time the man identified as 30-year-old Jenym Fletcher-Middleton had encountered the police.

In December 2011, he was wanted by the 11 Division Family Violence Unit for allegedly making threats against a woman and disobeying court orders.

Two years later, police issued a news release saying Fletcher-Middleton was wanted on allegations of assault, forcible confinement and two counts of failing to comply with probation.

However it is not clear whether any of those charges were ever proven in court.

Residents in the area said he was known to them and that his girlfriend was planning to break up with him.

With files from Tamara Cherry