A Cole County teenager today pleaded guilty in the robbery and murder of a gas station attendant last March. 19-year old Terry Campbell faces ten years to life in prison for first degree robbery and second degree murder in the death of Michael Alfaro. Campbell and a another man, Will Branch, robbed the station in Jefferson City just before closing. Branch admits shooting Alfaro and pleaded guilty to robbery and first degree murder, though he does not face the death penalty because he was 17 when the crime was committed.