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Inmate charged with murder of prison cellmate identified by Ada County Sheriff’s Office

From the December crime report: Prison murder, child sex crimes, sheriff charged series
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This June 15, 2010, file photo, shows the Idaho Correctional Center south of Boise.

A 25-year-old Meridian man has been arrested after his cellmate was allegedly beaten to death at the Idaho State Correctional Institution south of Boise early Saturday morning. Colton J. Reagan was charged with first-degree murder, according to the Ada County Sheriff’s Office.

Gerald B. Cummings Jr.

Cummings Jr.

Around 2:25 a.m. Saturday, prison officials discovered there had been a fight in Reagan’s cell.

His cellmate, 57-year-old Gerald B. Cummings Jr., was unresponsive “with injuries that appeared consistent with a beating,” Idaho Department of Correction’s initial news release said. Cummings was pronounced dead at 3:38 a.m. Saturday, the release said. Ada County Sheriff’s Office detectives collected evidence and conducted interviews.

Reagan and Cummings Jr. were the only two people in the cell at the time of the altercation, according to the Ada County Sheriff’s Office.

Deputies arrested Reagan on Saturday morning. Prison officials moved Reagan to a different cell on the Department of Correction campus, according to the Ada County Sheriff’s Office. He made an initial court appearance Monday afternoon. A preliminary hearing is scheduled for Dec. 21.

Cummings was serving out three sentences for possession of a controlled substance convictions in Twin Falls County District Court, according to court records. He would have completed his final sentence in July 2025, according to Department of Correction records.


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