A Bristol Tennessee Man Is Facing Attempted Murder Charges Related To A June 28th Attack. 76 Year Old Douglas Ferguson Is Charged With Attempted Second Degree Murder After Allegedly Running After His Son, Who Was Mowing A Yard, With A Running Chainsaw. The Son Ran Over His Father With The Lawnmower In Order To Defend Himself. Witnesses Corroborated The Victim’s Account. Ferguson Remains In Jail Without Bond On An Additional Violation Of Probation Charge. His Bond On The Attempted Murder Charge Is $25,000.