He listened with an open ear, pacing the area and looking at the scene himself. Bristol had seen a lot of murders in his life, many of which he never wanted to relive. This one was clean - almost a little too clean. It felt a little staged like they wanted them to see this and wanted to lead to their suggestions.
He kept the ideas to himself and stayed quiet, letting Barbara ask her own questions. "Hm, alright Aidan anything else you want to add?" If not, he figured he would get the rest of the details later.