"Colburn calling in the plates/make/model/year for the victim's car 2 days before it was found". Should be usual when someone disappears.

"Victim's voice mail was checked at 8am the day after she was supposedly killed". By who? The family? The murder?

The series did not show the past of Avery before this affaire. Specially when he burns alive a cat while laughing. Maybe there would be less watchers to believe in his innocence! I am currently writing on this affaire and read of lot of documents, and I have no doubt he is guilty. For the other idiot, Dassey, it is less sure.