Arnold Hartley, a 73 year old convicted pedophile, was discovered beaten to death in the early hours of Saturday in his home in the town of Redcar in County Middlesbrough.  He suffered serious injuries to his head and face.  Police have arrested two people in connection with the murder.  Hartley was released from jail in April 2002, having served a 12 month sentence for making indecent images of a girl under the age of 14.  A 28 year old man and a 20 year old woman were being questioned.  Police said it was impossible to determine whether he had died in a vigilante attack.