Brad Lee Davis, 33, of Oklahoma, has been charged with manslaughter after confessing to giving his stepfather a lethal wedgie.

Davis and 58-year-old Denver St .Clair were drinking in St. Clair's trailer home east of Oklahoma City when the older man started insulting Davis' mother, according to police. The two got into a fight that left blood spattered in the kitchen and living room. After St. Clair lost consciousness, Davis pulled his underwear up over his head, causing the elastic waist band to choke the victim to death. Once Davis realized St. Clair was no longer breathing, he called 9-1-1.

Davis' trial for the December crime was set to begin Monday, but he decided to plead guilty to first-degree manslaughter, heat of passion. His sentencing hearing is scheduled for July, and he could face four to 35 years in prison.