The Lincoln Journal Star reports that the Johnson County jury convicted 60-year-old Roger Weikle on Tuesday after deliberating about 50 minutes following closing arguments.
Weikle faces sentencing in October.
He already is serving a sentence of up to 218 years for first-degree murder and a number of other charges. He is currently serving that sentence at the Nebraska State Penitentiary in Lincoln.
A Johnson County jury heard Cpl. Joseph Hatzenbuehler testify Monday and watched video of the deadly riot. The video was the first public glimpse into the yard and the inmate-on-prison worker assaults that sparked the destructive riot May 10, 2015.
Inmate Roger Weikle was accused of running at Hatzenbuehler and trying to stomp on his head while he fought another inmate on the ground. Weikle didn’t appear in court for his trial Monday.