and i go -- and she goes, no, the piece of paper here. >> the torn paper was an old direct mail sales coupon for a construction glass on one side and on the other, a "have you seen me notice" for cindy zarzycki, with her picture and a 1-800 call line for leads. >> we're ecstatic. we're sitting there, why would this guy have this on his property? >> maybe because his son was involved and it was the girlfriend and maybe the son had put it in there. >> we were thinking the same way. we're going, man this is probably scott's, they're going to say this is scott's stuff, you know. and then we looked at the expiration date on the back of the advertisement -- >> there it was in the small print, expires june 1995. >> and why is that important? >> well, scott died july 4th of 1994. >> scott was dead by the time this thing was put into this keepsake box? >> that's correct. >> was this the best evidence you had to date? >> well, the only physical evidence we had. >> had mac and his partner stumbled upon a pedophile