As police investigated, a reporter noticed a crow, who many believe was Canuck, swoop down and pick up the knife.
Police chased Canuck about 20 feet before the bird dropped his weapon.
That wasn't the only trouble Canuck was causing at the crime scene.
He was seen sitting on the roof of a burned-out car involved in the event and trying to get into a cameraman's gear.
Canuck is infamous in Vancouver. He has his own Facebook page where fans can follow his exploits.