I have said this before, but I honestly believe that LE have far less video and audio (and DNA) evidence than they have led us to believe. I also think that they want the perp to believe that they have all this evidence. That way, if they do make an arrest they have a better chance of getting him to confess. (Along the lines of "Listen, we already know what you did since we have the recording and your DNA. But if you come clean now and explain why you did it we can put in a good word with the judge and maybe take the death penalty off the table, blah blah blah"). If you have a crappy hand you better be good at bluffing, and I believe that's what LE has been doing all along. Then again, I am truly HOPING I'm completely wrong and that they have all the evidence they need for a slam dunk conviction!! It's just not the sense I'm getting after following this case from the start.