A Central Oregon man has pleaded guilty to murder in the August murder of his girlfriend, Roberts “Bobbie” Jones last August. Michael Sain faces life in prison and must serve more than 37-years in prison before he will be eligible for parole. He will be sentenced Wednesday by Judge Alta Brady. The victim's body was found dumped in the woods west of Bend.   Sain entered an Alford Plea, which means he does not admit guilt, but acknowledges there is enough evidence to convict him if he went to trial.