MANITOWOC (WKOW) -- 19-year-old Brendan Dassey, serving life for the 2005 death of Teresa Halbach, is asking for a new trial.
Dassey was sentenced for first-degree intentional homicide, second-degree sexual assault and mutilating a corpse. He and his uncle Steven Avery were convicted in the death of Teresa Halbach at their family's salvage yard near Mishicot.
The motion filed Tuesday claims ineffective counsel because his attorneys didn't argue against the state's claims that his videotaped confession was reliable.
Dassey's new attorneys say Dassey was a special education student at the time and that investigators used overwhelming tactics to get the boy to falsely confess.
Avery is also seeking a new trial. He says his judge refused to allow evidence that other people had motive and opportunity to kill Halbach.