much had changed for the jessee clan in the years since jack jessee had been stabbed to death.e sandra had moved to arizona to be near her son, tom. jack's murder investigation, difficult with each passing year. >> after i reviewed the case, i had no feeling for the family, no feeling for jack jessee. >> reporter: so to get his hand in the game, dove met with the people closest to jack. like his brother david. >> and when i met with david, he inspired me. his determination not to let the love for his brother go was a big motivating factor. >> reporter: but david also had some provocative information. something jack told him after arguing with sandra about moving to arizona. >> if anything ever happens to me, he says, it's her. >> reporter: not the only time jack said such a thing, it turned out. >> he actually told me, i wouldn't be surprised if the bitch killed me. he said that. >> reporter: so dove picked through all the original files, hoping he might come across something that had been overlooked. and buried inside, he found this. a simple two-page report apparently unread