he sat down with two cops he knew well. he'd been sharing coffee in cases with him for years. this time the tone of the interview had changed. because now the investigators did have a working theory of the murders. and the evidence they were gathering pointed to none other than david camm as the killer. there one time fellow trooper and law enforcement brother was now quite possibly determine. a monster who murdered his family. they have the timeline, the murders they took place, they believe, between nine and 9:30 that night, after david returned home. the police canvas had turned up a neighbor who heard noises, and shots fired.