what went wrong? how did that happen? >> from transposing measurements from the crime scene program, numbers were transposed wrong. >> wallace admits the error but says it was minor, that conrad truman did not deserve a new trial. >> it's not that significant as they made it out to be. >> did those incorrectly entered measurements change your opinion of conrad true map's guilt? should they change anyone's? >> they didn't change my opinion. >> nor did they of deputy d.a. timm tailor who decided to prosecute conrad again. >> i think craig had been in the case for a long time. i went through all of the evidence. even with the medical examiner changing his opinion i stip -- still felt there was a lot. >> conrad's rambling, incoherent