The Illinois Prisoner Review board in Springfield voted nine to four on Thursday to grant 80-year-old Chester Weger parole after nearly 60 years in prison. 

Weger was convicted in one of three murders at Starved Rock State Park that happened in 1960. The three women killed were Mildred Lindquist, Lillian Oetting, and Francis Murphy. LaSalle County State’s Attorney Karen Donnelly opposed the decision.

Weger has maintained that a confession he gave was coerced and that he’s innocent. Despite being against the parole, Donnelly hopes that Weger is able to become a productive member of society.

Weger will stay behind bars for at least the next three months while undergoing a sexually violent person evaluation.