UPDATE: San Francisco police have arrested Arthur Lee Jones, of Fairfield in an unprovoked attack on a homeless man near the Tenderloin.
If you are going to watch this video, then be prepared to see a callous premeditated psychopath walk up to an unsuspecting victim & cause serious trauma.
The victim remains hospitalized with critical injuries and Police need you help identifying the attacker. Police are hoping someone recognizes the man in surveillance video seen smashing the victim in the head with a metal pipe or bat. Locals say the man, who goes by Robert is well liked. Even a local San Francisco Police officer knows the victim.
If you recognize the attacker please call the SFPD & help get this guy off our streets.