A Michigan man convicted of a rifle-slaying committed at age 11has pleaded guilty to assaulting two prison guards.
Twenty-six-year-old Nathaniel Abraham made the plea Tuesday in Lenawee County Circuit Court in Adrian. Authorities say Abraham attacked the guards in November 2010.
Abraham is serving four to 20 years for drug possession. He faces sentencing next month on the charges, which carry up to five years in prison.
Abraham was convicted of murder for using a stolen rifle to kill 18-year-old Ronnie Greene in Pontiac in 1997. He was released when he turned 21.