In South Carolina, the governor has the lone ability to grant clemency and reduce a death sentence to life in prison. However, no governor has done that in the state's 43 executions since the death penalty was restarted in the U.S. in 1976.

The state is scheduled to execute Freddie Owens on Sept. 20, which will be South Carolina’s first execution carried out since 2011.

A deeply troubled South Carolina inmate scarred by a traumatic childhood wrote letters on death row that at times threaten the ones he loves in chilling terms and at others show a vulnerable man who describes himself as being "fragile as a child.