This led in some unexpected directions. Mcgee we knew that she attended a party with some hispanic males, and found some friends there, and liked some of those guys. Narrator those hispanic men, more than a dozen in total, turned out to be workers who had taken temporary Construction Jobs and shared a house near the murder site. Mancuso these people are undocumented, illegal aliens, and so we have nothing to go on other than if theyre telling us who they are, if thats who they are. We got nothing. Narrator the men freely submitted their dna. None of their profiles matched. And they had more Bad News for investigators. One of their group fled town right after sierras murder. Mcgee we believe that the worker was headed back to mexico, and he had an Eighthour Jumpstart on us. You have to realize we had to identify sierra and put the pieces of the puzzle together