Steven Avery has written an open letter that suggests he knows who the real killer is

If not one of the most important documentaries ever made, Making A Murderer is definitely one that’s captured the most attention (and sprawling imagination) of the public - and the furore isn’t dying down anytime soon.

As you’ve no doubt seen, a lot of people have their own theories on exactly who was and who wasn’t responsible for the murder of Teresa Halbach, and unsurprisingly Steven Avery, the man arrested for the crime, is no different.

In an open letter to his supporters posted on his lawyer's Twitter account (which you can see below), Avery once again reiterates that he was not involved in the murder and nor were his family.

But also adds that the killer is definitely known.

The letter in full:

"To my supporters:

I want everyone to know that no one in my family including me was involved in the murder of Theresa Halbach. It is obvious who killed Theresa but the Maintowoc Cops chose not to investigate him so they could frame me..

Just like the first time.

Signed: Steven Avery

2-5-2016"

The letter comes less than thirty days before Avery is set to launch a new appeal, one where his lawyer will apparently be presenting new DNA evidence that proves his innocence.

It's probably fair to say that the Making A Murderer case has only just begun...