Former Illinois Governor George Ryan has died at the age of 91. He served prison time for federal corruption charges.

A Republican and former pharmacist, he cleared the state’s death row and imposed a moratorium on capital punishment. He was later imprisoned for corruption.

George Ryan, the former Republican governor of Illinois, died at the age of 91, leaving behind a legacy as a champion of clemency and a critic of the death penalty, who commuted the sentences of all 167 people on Illinois' death row and pardoned four outright.