London police say a suspect is still at large in the shooting death of 49-year-old Steven Patrick Sinclair on Hamilton Road early Sunday morning.

Five people were originally arrested Sunday, four of whom were charged with possession of a controlled substance. The fifth person was released without charges.

Police now say they are searching for another suspect who was seen fleeing the scene eastbound.

The suspect is described as a black male 18 to 22 years of age. He is approximately 5'8" to 5'11" tall with a slim build.

Police warn the suspect may be armed as the firearm involved has not been found.

Sinclair died after being shot in a parking lot off of Hamilton Road around 5 a.m. Sunday morning.

Upon arrival, emergency crews found him suffering from gunshot wounds. Sinclair was transported to hospital where he was pronounced dead.

CTV London spoke with several family members of Sinclair's on Monday.

They were too distraught to go on camera but Sinclair's sister Dionne Sinclair released a statement to CTV London.

“Steve was the kindest, gentlest person you’ll ever meet. He was loved by everyone he met. This is a huge loss and tragedy for our family and he will be greatly missed.”

Neighbours tell CTV News the shooting took place in a type of “clubhouse” for motorcycle enthusiasts.

Police would not confirm if the shooting involved members of a biker club.

The investigation is ongoing.

This is London's sixth homicide of 2015.