mr. pryor was at the edge of that. as the chainsaw got thrust he put his arm up, basically a reflex movement to protect his face. the change saw went up and it just caught him. it appeared to be very minimal contact but obviously the weapon is so serious that it caused a very nasty injury. the wound had gown right through down to the bone. >> then disturbed man decides to leave the pub. once he's back out on the street, someone calls the police. but the pub's patrons aren't about to let him get away. so they decide to take the law into their own hands. >> a few of the people in the horseshoe area if you like, they picked up bar furniture stools and chased him outside. >> the exterior security camera captures a lone patron armed with only a beer barrel trying to stop the attacker. >> the guy with the beer barrel throws it at him once and he deflects wit the chainsaw.