11:15 a.m. MCLOUD — Pottawatomie County Sheriff Mike Booth said he had never heard of “an atomic wedgie,” before suspect Brad Davis told investigators he gave one to his stepfather, Denver Lee St. Clair, on Dec. 21 at St Clair's home at 4 Shadowlake Drive in Pottawatomie County near McLoud. St. Clair was dead at the scene. Davis is St. Clair's stepson and lives in the area.

“I'd never seen this before, but when we first looked at our victim seeing the waistband of his underwear was around his neck,” Booth said.

Booth said Davis told investigators that he went to his stepfather's residence and his stepfather “jumped him.”

St. Clair had a head wound and appeared to have been in a fight. The underwear St. Clair was wearing had been pulled up his back and over his head, leaving the waistband around his neck. Booth said it was the first time he had ever heard of someone being killed by a pair of underwear.

The cause of death has been determined to be from blunt force trauma to the head and asphyxiation. The death has been ruled a homicide, said Amy Elliott, Oklahoma state medical examiner's spokeswoman.

Booth said a full report has been presented to the Pottawatomie County District Attorney's office where a murder charge is expected to be filed.

St. Clair was under a permanent protective order filed in 2008 by his wife Tressia Ann St. Clair. She lived in the home where Denver St. Clair was killed. Brad Davis is the son of Tressia St. Clair.

In the 2008 protective order, Tressia St. Clair claimed she found her husband embraced in a “sexual way,” with a drinking buddy and that he later grabbed her by the neck and threw her through a bathroom door.