Of murder, Avery is guilty as hell. The movie deleted an amazing amount of evidence to make him look like a choir boy.
I know a lot of people who covered his murder trial and they are angry as hell over the movie.
Avery may have been involved in the disappearance of Teresa Hallbach, but the documentary raised too many questions to understand how he was found guilty beyond a reasonable doubt for her murder.
And I think most people are more alarmed about how the nephew was dragged by police into the story in order to increase their chance of a conviction for Avery. It was pretty apparent that what was done to the nephew was an obvious miscarriage of justice.