An attorney for convicted killer Steven Avery has filed a motion to add new evidence which was withheld when Avery was found guilty in 2007. The 41-page motion suggests Bobby Dassey and Scott Tadych could have killed photographer Teresa Halbach in 2005. Neither man has been charged. Avery and Brendan Dassey are fighting their convictions. One piece of evidence is a compact disc containing images of sexual violence against young women, similar to the way Halbach was killed. It was found in a computer in Brendan Dassey’s home, but Avery’s lawyer says that computer was primarily used by another family member.