The moment Aberfeldy murderer David Campbell was arrested has been captured in a new documentary. A dramatic scene where the Perthshire killer is removed from his home, where he was using the toilet, is included in the BBC’s Murder Trial: Death of a Dog Walker. The show features interviews with the partner of victim Brian, Pam Curran, who spoke about the moment she faced David Campbell in the dock as she gave evidence against him. Murder victim Brian Low’s brother interviewed in BBC documentaryBrian’s brother Douglas has also spoken for the first time as part of the documentary. Murder Trial: Death of a Dog Walker, a Firecrest Films production for BBC Scotland and BBC Two, is available on BBC iPlayer.