and it turned out to be nathan leuthold. when you're looking at this photo lineup maybe you'd seen nathan in the neighborhood and subconsciously you were choosing that photo because you'd already seen him before? >> no. >> reporter: why were you so sure? >> because of the look on his face. i knew i didn't make a mistake. and i was very careful when i looked at the photos so i would not make a mistake. >> when she testified, you could hear a pin drop in that courtroom. i mean, everybody was glued to her testimony. i don't think there's a person in that courtroom that disbelieved what she was saying. >> reporter: prosecutors said it must have been nathan the neighbor saw that day, because police found a black hooded sweatshirt on his bedroom floor. what's more, an expert testified it had gunshot residue on the right cuff. >> nathan said that he had been at the gun range. is that feasible, that if he was a -- >> no. >> reporter: shooting off his gun, that there would be residue? >> what's important about that, too, is he said t