POTTAWATOMIE COUNTY, OK (NBC) -- Police have arrested an Oklahoma man for allegedly killing his stepfather in an unusual way during an argument -- just days before Christmas.

Authorities said the man killed his stepfather with an "atomic wedgie."

"I can't imagine how you do that to your stepfather," said resident Peggy Springer. "Choke him with his underwear."

Thirty-three year-old Brad Davis is under arrest for taking a high school prank to a deadly level.

Investigators said Davis and his 58-year-old stepfather, Denver St. Clair, were drinking together inside the family home a few days before Christmas.

According to the police affidavit, tempers flared when "St. Clair began speaking ill of Davis' mother" and a fight broke out. Davis claims his stepfather swung first, but the domestic dispute intensified when Davis knocked his stepfather unconscious, grabbed his underwear and gave him a "Atomic Wedgie."

"His underwear was pulled up over his head and the elastic band was around his throat," said Lt. Jimmy Brewer of the Pottawatomie County Sheriff's Office.

The medical examiner reports the cause of death was a combination of blunt force trauma and asphyxiation.

"And with the blunt force trauma, that's a whole other issue too," Brewer said. "One of the two, either or, it was bad."

After the fight, Davis called 911 to report what happened, but police said they believe he tampered with the crime scene to make it look like he killed St. Clair in defense.

"People knew him," Springer said. "And then to be killed like that is just outrageous." I mean, it's just like something you can't even imagine."

Before that fight, authorities said Brad Davis had texted a friend saying he was going to hurt his stepfather because "he had nothing to lose."

He is currently being held in jail, without bond.


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