An 18-year-old Colorado man accused of killing his teenage girlfriend in Utah when he was 14 because he thought she was pregnant has pleaded guilty to murder.
Darwin "Christopher" Bagshaw entered the plea Monday, a week before his trial was set to begin. Prosecutors say he beat 15-year-old Anne Kasprzak to death and tossed her body in a river near Salt Lake City.
Authorities say he thought the girl was pregnant when he killed her in March 2012, though medical examiners later found that she wasn't.
An autopsy later showed she suffered blows that crushed her face and head. Police said they found her blood on Bagshaw's shoelace, and he asked a friend to lie and say she'd had a nosebleed.
Bagshaw was arrested last fall, more than two years after the death.