An Amarillo man serving a 20-year sentence was found dead in his cell.

On November 10 Robert Nunez had died from unknown injuries at the Plunsky Unit in Livingston, Texas.

Nunez was convicted for aggravated perjury after his son Miguel Angel Nunez had gone missing for six years.

The 8-month-old child’s body was later discovered inside of a cooler in the attic of Nunez’s old Amarillo home.

At this time Nunez’s cellmate is considered as the primary suspect. 

An autopsy has been ordered to be conducted on Nunez.