A 55-year-old Santa Rosa man will spend the rest of his life in prison for his role in a fatal shooting during a marijuana robbery outside a butcher shop.

Jose Carraballo Mejias, 55, was sentenced Monday by Superior Court Judge Dana Beernink-Simonds for the Oct. 6, 2011, killing of Jose Manuel DeJesus, 33, of Santa Rosa, Sonoma County District Attorney Jill Ravitch said in a statement.

Mejias and three other men planned to buy pot from DeJesus but instead shot him and took the drugs outside Carniceria Contreras on Todd Road in Santa Rosa, Ravitch said.

Mejias and the others "left the scene immediately, dumping cellphones and the murder weapon along the way," she said.

Mejias had prior prison convictions, including a strike conviction.

Mejias and Alberto Lopez-Barraza, 33 of Hayward were convicted in November of first-degree felony murder in the course of a robbery, conspiracy to rob and robbery.

Lopez-Barraza will be sentenced later.

The suspect alleged to have done the shooting, Fernando Lopez Castillo, is scheduled to go on trial in April. His older brother, Juan Ramon Lopez Castillo, pled guilty in November to first-degree murder and faces a sentence of 25 years to life.