ron powell is his name. >> at first, i'm not thinking i want to go up there.i saw her family saying, "well, can you help us," that type of stuff and "us" meant mark. that's when i started to think, you know -- >> the victim's family wants the accused represented by you because they believe he's innocent? >> correct. >> that's sort of a once in a while thing, hardly ever happens. >> yeah, like never. >> reporter: but 14 months after the murder, when mark went on trial the family, his, karen's and theirs, filled the galleries every day to support him. >> you are there because you know that person. >> reporter: the judge allowed cameras in court but no audio. so, we can't play you the testimony of that woman from idaho and decided to conceal her identity. that's the one he'd texted and phoned but hadn't seen in more than 3 decades. still, it was to be with her, said the state, that mark killed his wife. and on the stand -- >> at one point, she said mark had mentioned that if they were meant to be together, something bad would have to happen. >> reporter: the woma