Steven Avery's new attorney plans to use advanced luminol testing to exonerate him.

And considering her track record, there is reason to be hopeful about Avery's chance of finally being proved innocent of the grisly murder outlined in the hugely popular Netflix series.

Kathleen Zellner, who specializes in exoneration, has had more wrongful convictions overturned in her 20 years than any other private attorney in America, according to her website.

The revelation of Zellner’s luminol approach was delivered via Making a Murderer’s Twitter account.

Luminol is used to detect blood in large areas that can’t be seen with the unaided eye.

Kathleen Zellner plans to bring a new appeal to court in 30 days.

According to GQ, the key piece of new evidence will allegedly prove the complete historical absence of Teresa’s blood from key areas of the Avery’s property, proving that Teresa Halbach was killed in neither Steven’s trailer, nor his garage, as former State Prosecutor Ken Kratz had claimed.

Reportedly, Zellner has also purchased an exact replica of the Toyota Rav 4 that Teresa Halbach was driving the day she disappeared, implying that she plans to re-evaluate the role of the car in her death. In a statement, the attorney says:

We are confident Mr. Avery’s conviction will be vacated when we present the new evidence and results of our work to the appropriate court.

You can keep up with unfolding events by following Zellner on Twitter.