behind. the dna from renee's rape kit and the single hair from tammy's bed ultimately tied him to both crimes. rudy gaytan was convicted of second degree murder in the death of tammy tatum and first degree sexual assault of renee dulany. >> he chose to kill her, and i got to live. i felt responsible to make sure i, you know, live a good life because hers was taken from her. >> gaytan was sentenced to a total of 72 years for both crimes and will not be eligible for parole until he's 103 years old. >> forensic evidence and the emerging technology of dna was critical in the solving of this case. without the dna evidence that was recovered from tammy tatum,