and there was just kind of this -- this -- i don't know -- this tension. >> reporter: scott goldsteinway this could be unusual. >> the opening line, i think, for the prosecutors was, "there are two people on the face of the earth who could've done this." they said up front that it's about these two -- these two men. >> reporter: nathan and daniel. a boyfriend incapable of murder, the prosecutor would say, and that boy's roommate, driven by jealousy. >> we couldn't just go in and say, "here's the -- here's the physical evidence, and the circumstantial evidence, and you know he did it." we had to then show all the evidence that we had that showed nathan didn't do it, because we knew that was gonna be the defense. >> reporter: and as for daniel -- >> i told them in opening statement, it is bizarre as it is brutal. and i wanted them to know that they would be hearing a case where their first reaction was going to be, "how could this happen? this -- this is -- this is crazy." >> i didn't want to be in the middle of the case and them trying to figure out, "wait, what's going on, and why are