Irvine police are looking for a teenager who is accused of assaulting an elderly man after their dogs got into a scuffle. A surveillance camera caught the March 19 attack on video. The footage shows a 69-year-old victim walking his dog at Sierra Vista Middle School about 7 p.m., when an off-leash husky approached him aggressively. The man scooped up his own dog in order to avoid a fight. The husky appeared to be connected to a teen, who can be seen in surveillance video jogging and kicking a soccer ball in the area. Minutes later, the husky again approached the victim’s dog, which caused the elderly man to lose control of his dog’s leash. The dogs began fighting while the victim attempted to separate them. While this was occurring, the teen approached the elderly man from behind and struck him on the head. “He kicked him in the back, knocked him down and then …