 From the Center for Investigative Reporting and PRX, this is Reveal. I'm Al Edson. Yes, ma'am. I have what appears to be a Jefferson County police officer shot. After a deputy sheriff is killed, investigators are desperate for a lead. Evidence-wise, well, we had virtually no evidence. Then, an ear witness claims she overheard a man confess to the murder. Obviously, we believed her because we convicted him, and it was on her testimony.