the desk. >> you can see the father standing with had daughter very proud and knowing the story that i knew that time, that she had been murdered, it was something that always held my attention. >> by 2000, a new dna process called pcr made it possible to test a small biological sample, where in the past, larger samples were needed. >> we're just copying the specific portions of dna that we're interested in analyzing. >> so they tested the small biologic sample taken from the autopsy and were able to test it. john paul phillips was not on