and said so in an e-mail. along with another nugget. >> he wrote, "our marriage has seen better days and i don't see it trending up." i remember that really striking a chord with me. because i didn't know that their marriage had seen better days. >> reporter: so of course investigators wanted to interview jason young. maybe he could tell them something. but he refused to talk to them. >> he talked to the lawyer. and then under the advice of counsel he declined to speak with us at all. >> reporter: didn't ask about it? didn't ask how his wife died? >> no. >> reporter: perhaps, investigators thought, that business trip deserved a second look. so they want to the hotel, poked around and discovered some odd activities that night in a stairwell near an exit. >> there was a camera there that had been unplugged. >> really? >> yes. it was one of the side exits for the hotel. one of the fire stairs that go down to the first floor. >> reporter: was there any other tampering done?