The man who killed his stepfather with an “atomic wedgie” told a judge Wednesday, “It’s like a bad dream.”

Brad Lee Davis, 34, of McLoud, pleaded guilty Monday to first-degree manslaughter for killing his stepfather the night of Dec. 21, 2013, after a fight.

The former Marine described the fight Wednesday at a hearing meant to help the judge decide the appropriate punishment. Sentencing is set for July 16.

The victim, Denver Lee St. Clair, 58, died after he was strangled by the elastic band of his own blue underwear. The band had been pulled over his head from behind. The cloth had ripped away from the band as the underwear was yanked.