CNN Forensic Files June 18, 2014 08:16:00
With maryann's personal belongings found skin cells on the collar. the skin cells provided a dna profile. >> when i analyzed the swabbing of the collar to determine the wearer, it matched george hansen's profile, and it didn't match anybody else's profile. >> but that didn't prove he was the killer. the sweater belonged to the original business owner, al zullo, and remained in the company closet. other employees, in addition to george hansen, occasionally wore it. >> i started using the sweater in the wintertime, and i would wear it. and of course, other people put it on, too, once in a while,...