is doing but because of what jim isn't doing. it's the moment of pam's murder in the parking garage next door and everyone in the frame starts to react to move toward the sound of pam's screams. everyone that is, accept jim. he doesn't seem interested. >> is it your belief that at the time surveillance cameras capture him walking around the courtyard area that he knew his wife was being killed at that exact moment? >> yes. the reason i base my belief on that is because when he walks out of the building, everyone is interested in what's going on in the parking structure except for him because he knows what just transpired. >> but that apparent disinterest in pam's screams wasn't enough to charge jim was murder. in fact there was little evidence he had anything to do with it. and then his phone rang.