Not sure who this guy in the video is, but he's breaking it down for us. Apparently a note was passed in prison; a written confession from a Wisconsin man already in prison for murderer that was not Steven Avery or Brenden Dassey the men in jail for the murder of Teresa Halbach.
Kathleen Zellner the lawyer who has taken the case for Steven has received the info and is strongly pushing to the public that there is much collaborating that will need to happen in order to vet the validity of this convicts statement. That is all that is known at this point.