but where that really innocent? i didn t do it. somebody is doing a good job on me. did you have any kind of vendetta against steven a very? absolutely not. for the first time on television, a lead investigator defenses interrogation, which led to a conviction overturned. this was seen by many as a false confession. i feel it was a real confession. we just need you to be honest with us. right from wrong. those officers wanted that information in the worst way and they got it in the worst way. the prosecutor fights back with an explosive book. people are going to hear the other side of the story. and steven evers high powered new attorney. do you think you have new evidence that could free steven avery? we do. welcome to dateline. it s an extraordinary case that defies easy answers. at the center of it all, steven