GROTON, Mass. (AP) — Authorities say a man accused of killing three family members and a caretaker in Massachusetts told officers he “freed them.”

Records released Friday by the police say Orion Krause told officers he killed his mother, grandparents and a caretaker with a baseball bat.

The documents say Krause began singing after telling the officers about the incident. The records also say Krause told a nurse during a medical evaluation he uses heroin.

The 22-year-old man from Maine has pleaded not guilty and is being held without bail at a mental health facility, pending a competency evaluation.

Krause’s lawyer Edward Wayland had fought the release of the records, saying they would cause Krause’s family grief. Wayland didn’t immediately return a phone message.

Krause recently graduated from Oberlin College in Ohio.

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