A convicted cop-killer who is missing a small part of his brain is asking the U.S. Supreme Court to halt his Tuesday execution, arguing mental illness and intellectual disability make him ineligible for the death penalty.
Cecil Clayton’s appeal to the nation’s top court comes after the highest court in Missouri rejected his claims in a 4-3 decision over the weekend.
Clayton, 74, was injured in a 1972 sawmill accident in which a piece of wood shot through his skull, forcing doctors to remove a fifth of his frontal lobe — which amounted to just under 8% of his brain.
His lawyers contend that after the surgery, he became hallucinatory, suicidal, alcoholic, paranoid, depressed and prone to violent outbursts. In 1996, he shot and killed sheriff’s deputy Chris Castetter while the officer was responding to a domestic disturbance.









