Updated

An Alabama man who claimed he had a suicide pact with the girlfriend he killed has pleaded guilty in her death.

A statement from state and local prosecutors says 22-year-old Loren Bunner of Vincent pleaded guilty to murder Thursday in the death of 18-year-old Jolee Callan.

A judge sentenced Bunner to 52 years in prison.

Authorities say Bunner took Callan to a remote trail in east Alabama and shot her in 2015. He later called police to tell them he had killed her.

Evidence showed Bunner told investigators the two had a suicide pact for him to shoot her and kill himself. Bunner told police he couldn't go through with killing himself after shooting Callan.

Callan was shot twice in the head and thrown off a 40-foot (10-meter) cliff.