NEW YORK -- As a violent game spreads across the country, a rabbi is doing his part to fight back.
When New York Rabbi Gary Moskowitz heard about the “Knockout Game,” he knew he had to take action.
"I want send a message, clearly, to these thugs,” Moskowitz said.
The object of the “Knockout Game,” 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.
Authorities in New York, New Jersey, Connecticut, Illinois, Missouri and Washington have all reported "knockout" attacks.
When the attacks began to spread in recent months, Moskowitz took action and started teaching his community how to defend themselves.
The rabbi is a former New York police officer – and he just happens to have a black belt in karate.
Moskowitz said he wants people to know how to stop these attacks with a few simple defense tactics that will let them gain the upper hand.
"If you swing at me, you're going to get hit back,” he said.
Watch video of Moskowitz's training by clicking here
Information courtesy WPIX