Evoking the “Non enim fruor” defense.
If he had killed them as a drunk driver so bombed out he didn’t remember getting in the car, would that be a successful defense? I didn’t commit the crime because I was awash in alcohol?
Unless that can bring your victims back, tough luck. Don’t do drugs, Einstein.
The good news for Dewayne is that by his standards he actually wasn’t executed, because he was so high he didn’t know he was dying.