interpreted it to be 13.9 feet. 33 inches became 3.3 feet. and on and on and on. >> reporter: according to moffat, those flawed measurements, which were used in court, made the house appear much bigger than it was. >> they used the theme of distance to argue that mr. truman was lying about where he said his wife was when he heard what turned out to be this fatal shot. >> reporter: at trial, the prosecution argued, to believe conrad, you'd have to believe heidy shot herself in the bathroom and then walked 12 feet before falling to the floor. and, according to the medical examiner, that was impossible. he testified heidy's head wound was so severe that she could have at most walked a step or two. >> this issue of distance was this big issue. >> reporter: now for ann taliaferro, just seeing the house and how small it was was