big part in here. >> ray and his team tediously pored over hundreds of old parking slips. and suddenly there it was. a car had left the long-term parking garage at 3:49 p.m. and printed right on the receipt, the license plate of the rental car picked up by serrano's nephew. and when lynn, the finger print expert at the state crime lab, started processing that 3-year-old parking receipt, a wondrous thing happened for tommy ray's blossoming theory of the case. >> lynn called up and said, tommy, i've got some fantastic news. the fantastic news was that we had prints of nelson serrano. >> the fingerprint proved that serrano was in florida on december 3rd, 1997. just an hour and a half drive away from eerie manufacturing. not in a hotel room in atlanta nursing a migraine. >> i knew that was more than enough for an arrest and an indictment against nelson serrano. >> and in may 2002, almost