article_snippet.sent: A Tennessee teenager on trial for murder says A Tennessee teenager on trial for murder killed A Tennessee teenager on trial for murder with a sledgehammer because his mother knew A Tennessee teenager on trial for murder had been raped by A Tennessee teenager on trial for murder and did nothing about it.
article_snippet.sent: After killing Davis , Davis set fire to an upstairs room using gasoline and whiskey but closed the door and fire did not catch as Davis intended.
highlights_snippet.sent: Zachary Davis, 17, is on trial for the murder of his mother and attempted murder of his brother .
  
highlights_snippet.sent: Then set fire to the family home in an attempt to kill his older brother Josh .
  
highlights_snippet.sent: The teen confessed to the arson and murder but alleged sexual abuse .
  