Two inmates killed a third inmate at a Northern California prison on Friday, authorities said, the third such slaying in two weeks at three separate prisons.
Coleman had been serving a sentence of life with the possibility of parole from Yolo County assault and robbery charges after two previous burglary convictions. While in prison he was sentenced to an additional 12 years for voluntary manslaughter.
Lutts was serving an 18-year term from Tuolumne County for assault with a firearm on a peace officer or firefighter. While in prison, he was sentenced to another nine years for assault with a deadly weapon as a second striker. This year he was convicted of making or possessing deadly weapon and sentenced to two more years.
Smith also has a lengthy criminal history. He is serving a life sentence with the possibility of parole for a San Joaquin County murder and attempted murder. He had a previous four-year sentence for evading a police officer causing death or great bodily injury, vehicle theft, and failure to appear in court. He subsequently had another four-year sentence for burglary and vehicle theft.