World. Steven avery and his nephew convicted of murder in the killing of a young photographer. Were they really innocent . I didnt do it. Somebodys doing a good job against me. Did you have a vendetta against steven avery . Absolutely not. For the first time on television, a lead an investigate defends his interrogation which led to a conviction overturned. It was seen as a false confession. It was a real confession. 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 will hear the other side of the story. And a promise from Steven Averys new attorney. Do you think you have evidence that can free steven avery . We do. Welcome to dateline. Its an extraordinary case that defies easy answers. At the center of it all, steven avery. He and his teenage nephew were convicted in the brutal murder of photographer Teresa Halbach. Then a documentary series with information so explosive that investigat