Police arrested 31-year-old Apolinar Lopez on Sunday on suspicion of assault with a deadly weapon. He was released on bail Monday and there's no word on whether he obtained an attorney.
A neighbor recorded the Dec. 13 attack near the Venice boardwalk. The video showed a man on the ground, trying to ward off blows. He was treated for cuts and a broken arm.
Authorities say gang detectives identified Lopez as the attacker. He was stopped for speeding and arrested on a warrant for assault with a deadly weapon and also on suspicion of driving under the influence.