Convicted killer investigated after cellmate’s beating death

A man serving time on a drunken driving charge was beaten to death in an Idaho prison, and officials say his cellmate – who was convicted of killing his three small children more than a decade ago – is a suspect in the case.

Idaho Department of Correction spokesman Jeff Ray wrote in a prepared statement that staffers at a prison south of Boise learned early Friday morning Glenn Arthur Cox had been assaulted.

That’s when they found the 52-year-old Cox unresponsive in the cell he shared with 45-year-old James Junior Nice.

Medical staffers attempted to resuscitate Cox, but he was pronounced dead about an hour later. The Ada County Sheriff’s office is investigating.

Nice is serving three life sentences for killing his twin 6-year-old boys and his 2-year-old daughter with rat poison and medications at their Twin Falls home in 2005.