thank you. ♪ nationwide is on your side >>> from the beginning, police thought maryann clibbery was killedworked with. >> that certainly helps our focus, knowing that this is an inside job, and that narrows the playing field down. >> george hansen had a motive. maryann could prove he was stealing from the company. >> she informed hansen she was, in fact, going to go to the authorities over his business practices. >> scientists analyzed the plastic bag which contained the weapon used in maryann clibbery's murder. they put it in a sealed chamber filled with cyanoacrylate, fumes from superglue. these fumes stick to the oils in human fingerprints. >> i processed the items with fingerprint powder. this is just a fine black powder. the powder will adhere to the superglue-developed fingerprints and make them visible. >> they found three distinct fingerprints and one palmprint. those prints matched george hansen. investigators also found gloves inside the bag covered with maryann's blood. dna tests of skin cells left in the gloves also matched george hansen. the dna was proof george was wearing th