A defense attorney for a man charged in a triple killing in Butte County has entered not guilty pleas in the case. 72 year old Don Clark is facing charges including murder and arson, after three bodies were discovered in a burned vehicle in the Magalia area earlier this month. The three victims had been shot. According to the Oroville Mercury Register, a colleague of the defendant claims Clark was afraid of the victims. The Centerville man will return to court in July for a hearing.