A murderer left a prison officer scarred for life after thumping him in his cell.
Stuart Murdoch, 31, punched guard Kevin Hall on the face inside HMP Shotts leaving him bleeding heavily. The violence erupted as prison officials and NHS staff attended to discuss medication with Murdoch.
Mr Hall had noticed a metal pole in the cell and decided to remove, enraging Murdoch. After the attack guards battled to bring Murdoch under control and in the melee Mr Hall lost a tooth.
