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"

A death row inmate in Missouri who has long claimed his innocence and is scheduled to be executed in less than one week asked the US Supreme Court on Wednesday for a stay of execution, arguing his due process rights were denied during the yearslong legal battle to save his life.

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.

Attorneys for Owens had filed an emergency motion with South Carolina's high court to reconsider stopping his death based on an affidavit filed by Owens' co-defendant, Steven Golden, stating that Owens did not shoot Graves during the robbery at the Speedway convenience store.

Robert Roberson, a Texas death row inmate with autism, gains support to halt his execution scheduled for October 17 amid new evidence.

If it moves forward, it will be the state's first execution in 13 years and the 14th execution in the nation this year. It's also the first of five executions the United States is carrying out in a six-day period between Sept.