The video captured by a neighbor of two men beating a homeless man with a chair, and other things, is disturbing.  The attack appears to be unprovoked, and has police in Venice Beach looking for the men.

One of the suspects used a beach chair to repeatedly whack the victim, who was crouched on the boardwalk.

The two suspects fled before officers arrived, and the victim suffered severe lacerations and a broken arm.

Watching things like this happen over and over again is disturbing.  No matter what lead to the confrontation, it seems that homeless people are often the target of violence.  If the YouTube video get's taken down due to the violent nature, here is the TV station report on the attack.