That video was shown at sentencing, not at trial.

That both your possibilities seem very unlikely is why I find the third-possibility - that someone else killed Halbach and dumped her burnt remains in his firepit — to be credible. Even though I also find it likely that Lenk/Colburn planted both the key and the blood. That's two independent agents working to frame…

I had a lot of trouble with the ex not remembering even what time of day it was that he last saw Halbach. It hadn't been that long and it's impossible — seriously, it seems impossible to me — that he hadn't been over and over that last meeting in his mind many times since her disappearance and death. There's no reason…

His body-language was odd and the documentary's editing and music cued the audience to see this as a damning revelation, but after some consideration I could think of a number of explanations for that exchange.