that could have been very damaging. >> but police found a worn pair of spaulding tennis shoes in john skinner'som. amy mechaud compared skinner's pair to the transparent overlays of the impressions found from the murder scene. >> on both of the impressions, the one from the linoleum and the one from the glass, there were enough accidental markings and characteristics that were visible in the impression that lined up with the known shoes that we were able to say without a doubt that these were the shoes that made those impressions. >> based on the forensic evidence, prosecutors say that skinner kicked in the back door and broke the glass. as he stepped into the room, his sneaker left a partial print on a broken shard. his other shoe left a partial print on the linoleum floor. audrey heard the commotion, grabbed her telephone, ran into the bathroom, locked the door and called police. >> 911. >> someone broke into my house. >> when skinner heard this, he kicked open the bathroom door and killed her. [ screaming ] [ shot ] police arrive within five minutes, but skinner had already fled with audrey'