Killer of Florida Corrections Officer Scheduled for Execution

Gov. Rick Scott signed the death warrant after the Florida Supreme Court in December rejected Muhammad's challenge to chemicals used in the state's execution procedure.

A man convicted of abducting and killing a Miami couple and later stabbing a prison guard to death is set to be executed after nearly four decades on Florida's death row, the Associated Press reports.

Askari Abdullah Muhammad, previously known as Thomas Knight, is scheduled to die by lethal injection Tuesday at Florida State Prison in Starke barring a last-minute, successful appeal.

Gov. Rick Scott signed the death warrant after the Florida Supreme Court in December rejected Muhammad's challenge to chemicals used in the state's execution procedure.

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