Video has been posted of an apparently disturbed man who set fire to himself Tuesday near the Esso service station at Church and Gerrard Sts. The man was chased by police to a Rabba market on nearby Jarvis St. In order to make an arrest, police used a so-called taser to subdue the man. Shortly after that, the man died. In the video, the man is seen walking with what appears to be a collar of fire burning in a controlled fashion. There’s no information on just how this was done. The matter is now with the police review agency called the Special Investigation Unit or SIU.