When brought in for questioning, David Campbell had his own theories, this time about the police.⁣ ⁣ Murder Trial follows the unusual case of gamekeeper Brian Low, who was found dead in Aberfeldy in 2024.⁣ ⁣ Watch Murder Trial: Death of a Dog Walker on BBC iPlayer now. ⁣ ⁣ #MurderTrial #DeathOfADogWalker