I don't know where to fall on this side of the argument.
I worked with Criminals for a year during University here in the UK (trainee Solicitor) and I've believed them until it has come down to the week before trial and video evidence has been dumped on my desk. It's a bitter pill to swallow.
However, what unnerves me the most about the documentary is the behaviour of the people in it. There is so much focus on the actions of people like Colborn, Kratz, the Dassey family and Mike Halbach but the behaviour in public really gets me is Steven Averys.
Whenever I watch the press interviews he gives (the one in particular that I think of is next to the red van that Teresa photographed just after she disappeared) I watch his face. He stares straight on at the interviewer like he is trying hard not to show any facial expression. To me, at least, his eyes seem wide as if he is trying very hard not to blink (it was considered for years that constant blinking is a way to tell a liar, whatever truth there is to this I don't actually know but I still hear it here in the UK). Most people I know would know what facial expressions supposedly make you look a liar, it seems to me as if he has 'trained' himself to try and not make any expression. I find that very suspect in itself when I watch it back.
"Most people think they're good at spotting liars, but studies show otherwise. A very small minority of people, probably fewer than 5 percent, seem to have some innate ability to sniff out deception with accuracy. But in general, even professional lie-catchers, like judges and customs officials, perform, when tested, at a level not much better than chance. In other words, even the experts would have been right almost as often if they had just flipped a coin."
http://www.nytimes.com/2006/02/05/magazine/05lying.html?pagewanted=print&_r=0
There's also this:
http://www.forbes.com/sites/carolki...k-at-spotting-liars/#6d7a942f1dff699c96661dff