Late wrestling star Chris Benoit murdered his 7-year-old son with his trademark ring move, the Crippler Crossface, according to police.

The WWE fighter, 40, asphyxiated his wife Nancy and son Daniel last month, before hanging himself a day later.

Police investigating the case believe he may have employed a version of his famed `finishing move’ to kill his young son–because marks on the boy’s body match those on victims of Benoit’s in the ring.

District Attorney Scott Ballard says, “A choke hold was used, rather than hands. There’s no bruising consistent with strangulation by hands.”

Wrestling writer Dave Meltzer adds, “There was bruising consistent with the Crippler Crossface on one arm and Daniel’s face. There were no bruises on his neck.

“But police don’t believe, because of the size difference, that the hold was applied exactly as in a wrestling match.”

“In the ring, the Crippler Crossface involved placing an arm of a floored opponent between Benoit’s legs, locking his hands around their face and pulling back to stretch their neck.”

Benoit Doctor Surrenders, Gets Charged by Police

Chris Benoit’s doctor has been charged with improperly dispensing painkillers and other drugs after surrendering to police in Atlanta.

Dr. Phil Astin had been charged with prescribing drugs including Percocet, Xanax, Lorcet and Vicoprofen between April 2004 and September 2005.

Police claim the drugs were dispensed to recipients identified in records by the initials O.G. and M.J., reports The Associated Press.

Although Benoit’s initials were not listed, anabolic steroids were found at the wrestler’s home, where cops believe the World Heavyweight Champion asphyxiated his wife and son before hanging himself–suggesting the drugs played a role in the family’s June deaths.

Last week, agents from the Drug Enforcement Agency (DEA) searched Dr. Astin’s office in Carrollton, Georgia, after the medic’s name was found printed on prescription bottles at Benoit’s house in nearby

Fayetteville.

Meanwhile, according to Web site TheSmokingGun.com, Astin was prescribing Benoit, on average, “a 10-month supply of anabolic steroids… every three to four weeks” between May 2006 and May 2007.

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