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HERMOSA BEACH, California ( KCAL, KCBS ) -- Disturbing video captured the moments that a group of teenagers on e-bikes attacked a man seemingly at random outside of a pizza shop in Hermosa Beach last week.

Locals say that the group targets people at random, surrounding them in a circle before harassing or assaulting them. They believe that the teens are being protected because they're minors, even as the encounters become increasingly violent.

The latest incident happened in an alley near the pizza shop, as the victim, a man in his 60s, was walking home with a slice of pizza. The violent encounter saw six teenagers attack the man, ending the beating by stomping on him while he laid on the ground.

"He was fighting back as best he could, but you cou

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