found near teresa's body. >> that little dirt road still had the tire tracks on it. which was a pretty good catch by the detective. so they did the right thing and preserved the tracks. they did a mold and everything else. and sure enough those tracks had the same tire pattern, tread pattern that the police cars had. but just because someone had a tire tread of the same basic pattern doesn't mean it was that car. >> his former boss, police chief michael brady, was also suspicious of the tire track evidence. soon after lake county investigators left the crime scene he made a discovery that convinced him the evidence was flawed. >> we went out and could find no evidence that the investigators had lifted any kind of tire imprint from the surrounding