CNN Forensic Files July 4, 2014 08:59:00
Whole trial. i think that's why i felt so robbed. is because i wanted him to admit it. i wanted him to say yes, i did this. >> derek perry, who was due to be released from prison the day after he switched wristbands with price was charged with fabricating evidence and got an additional five years in prison. the galveston county jail has since changed its procedures for drawing blood but the lesson for investigators and for chad price was that criminals may lie but forensic technology doesn't. >> without that mountain dew can to link him to the sexual assault cases, they might not have ever bee...