Ricky Ray Malone was convicted of the shooting of Trooper Nik Green in Cotton County the day after Christmas in 2003. He was sentenced to die, but the sentence was overturned.
Malone received a new death sentence in 2010 in Comanche County.
Malone shot Green to death with the trooper's own gun after Green found him on a Cotton County road in a car that contained a meth lab.
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