Police continue to investigate an execution-style shooting outside a busy Richmond Hill restaurant that left a 22-year-old man dead.

The fatal shooting happened Sunday night at approximately 7:30 p.m. outside of a Keg Steakhouse and Bar in the Highway 7 and East Beaver Creek Road area.

Police say the victim, Jerry Tuan Thanh Phan, was sitting in a parked BMW when a suspect walked up and fired three shots into the driver-side window. Phan was rushed to hospital where he succumbed to his injuries.

It is unclear if Phan was alone in the car or if he knew the shooter.

Sources told CTV Toronto that Phan was known to police.

After he was shot, police say Phan attempted to leave the area. He drove the BMW out of the Keg’s parking lot and onto the road, but was unable to turn. The BMW eventually came to a stop on a sidewalk, outside of a nearby Korean barbecue restaurant.

Police say the suspect fled the area on foot.

"The suspect ran in a northeast direction from the victim’s vehicle past the Keg restaurant and travelled north of there on foot," Const. Andy Pattenden said.

The Keg reopened at 5 p.m. on Monday.

Police are reviewing security surveillance video from the night of the shooting.

With a report from CTV Toronto's Ashley Rowe