MUSKEGON, Mich. (WOOD) — An inmate found dead in his cell at the Muskegon County Jail died from an epileptic seizure, an autopsy has concluded.

The sheriff’s office says deputies making rounds discovered 39-year-old Paul Douglas Bulthouse unresponsive in a detoxification cell on April 4. Deputies alerted jail medical staff, but Bulthouse was declared dead about 40 minutes after he was found alone in the cell.

The sheriff’s office says a pathologist concluded Bulthouse’s death was “natural” and caused by an epileptic seizure. The autopsy listed high blood pressure and coronary artery disease combined with chronic alcohol use as contributors to his death.

Bulthouse’s father told 24 Hour News 8 his son was on doctor prescribed Klonopin — a sedative used to manage panic attacks and seizures.

“…and as near as I know, they took that away from him,” he said.

Bulthouse was convicted in February for possession of child pornography at his home, records show. But that’s not what sent him to jail.

A judge sentenced him to 5 years on probation, but court records show Bulthouse kept violating the terms of that probation by drinking alcohol, getting on the internet, contacting his victim and refusing sex offender treatment.

Records show on April 1, Bulthouse tried escaping from the jail by “violence.” The records didn’t provide details.