>> allison carpentier was a veteran westchester county detective. joined the investigation and led some of the questioning. >> may, the daughter, what did you make of her? >> pretty much i got the feeling that she was being honest with me, but you never know. people are deceptive. >> the cops went through narcy's story once again, hoping for some overlooked detail or investigative nugget. >> she is the grieving -- all of a sudden widow. >> exactly. we need that information. she's the last person that saw mr. novack. >> narcy told detectives there was something of value missing, a gold bracelet that spelled out ben's name in diamonds. an expensive rolex watch was still on the bed lying in a pool of blood as well as an unexplained broken stem from a cheap pair of sunglasses. and then there was the matter of her husband's huge batman collection and a rare comic valued at $43,000 he was planning on selling that weekend. >> batman might have been a motivation for murder, his passion in life. >> uh-huh. >> he had a valuable comic and somebody else wanted