article_snippet: But  Barry County Sheriff's Deputy Christopher Castetter attorneys are making a last-ditch attempt to save  Barry County Sheriff's Deputy Christopher Castetter by calling for a competency trial - saying a traumatic brain injury makes it impossible for  Barry County Sheriff's Deputy Christopher Castetter to understand  Barry County Sheriff's Deputy Christopher Castetter death sentence.
article_snippet: In 1972, 24 years before  Barry County Sheriff's Deputy Christopher Castetter killed the officer, Clayton was using a sawmill when a board splintered and a shard went into Clayton head above Clayton right eye, the St Louis Post-Dispatch reported.
article_snippet: Then the evening before Thanksgiving in 1996, Deputy Castetter responded to a call about a suspicious vehicle parked outside Clayton's girlfriend's mother's home.
article_snippet: Earlier that night, Clayton and Clayton girlfriend had been arguing, and prosecutors said Clayton then took a loaded gun to her mother's house.
article_snippet: Clayton walked up to the deputy's patrol car window and shot Clayton in the head at point-blank range.
article_snippet: Castetter, a 29-year-old married father-of-three, died in the hospital later that day.
article_snippet: Killed: Barry County Sheriff's Deputy Christopher Castetter, pictured left, was shot dead by Clayton, pictured right in an old mug shot, as Clayton responded to a call about a suspicious vehicle in 1996 .
article_snippet: Last month, Walter Storey was put to death for slitting Walter Storey neighbor's throat 25 years ago.
highlights_snippet: In 1972, 24 years before Cecil Clayton shot dead a police officer, Cecil Clayton suffered a sawmill accident that caused a shard of wood to go into Cecil Clayton head .
  