. >> mark mark moffat and ann taliaferro were those attorneys.y did was visit what had become the scene of the crime. >> we went to the house and we walked in and we think, a ha. >> within moments of being in that home, we knew immediately that there was a huge problem. >> not a problem for them. more for the people who had put conrad truman away. >> coming up -- an innocent man in jail for someone's mistake in math? >> i remember thinking, well, that's strange. that couldn't be right. >> we immediately starting measuring right away and we knew there was a big problem. >> when "dateline" continues. e... for adventure. your home... for romance. your home for big savings. [ laughs ] hey, mom, have you seen m-- ew. because when you bundle home and auto with progressive, your home is a savings paradise. bundles progressive. your home for savings. trelegy for copd. [coughing] ♪ birds flyin' high, you know how i feel. ♪ ♪ breeze driftin' on by... ♪ if you've been playing down your copd,... ♪ it's a new dawn, it's a new day,... ♪ ...it's time to make a