Attacks around US probed for link to knockout game

(AP) In New York, a 78-year-old woman strolling in her neighborhood was punched in the head by a stranger and tumbled to the ground. In Washington, a 32-year-old woman was swarmed by teenagers on bikes, and one clocked her in the face. In Jersey City, a 46-year-old man died after someone sucker-punched him and he struck his head on an iron fence.

In each case, police are investigating whether the attacks are part of a violent game called "knockout," where the object is to target unsuspecting pedestrians with the intention of knocking them out cold with one punch. Authorities and psychologists say the concept has been around for decades - or longer - and it's played mostly by impulsive teenage boys looking to impress their friends.

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