At times, Freddie Eugene Owens' letters are incredibly vulnerable as he says he's "also human." At others they threaten violence and say "betrayers will be slayed"

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.

In South Carolina, which on Friday will execute its first inmate since 2011, 43 convicted murderers have been executed by the state since the death penalty was reinstated here in 1976. Few death row inmates have been acquitted in that time, but a substantial number have still managed to get off death row.