By someone. Nothing about this case suggests that anything of the evidence was planted. Do you thininyou have new evidence that could free steven air . We do. Rare and revealing interviews. Here from both sides. Now that hes aware that theres new testing, hes thrilled. A savvy, experienced criminal. Steven averys guilty. Im lester holt, and this is dateline. Heres andrea canning. Reporter its this years first bingewatching phenomenon, making a murderer, the new true crime documentary on netflix. I dont think anybody really thought that it would have this kind of impact. Reporter the 10part series, dense with details, has inspired online sleuths, white house petitions, and its share of controversy. Steven averys guil and deserves to be right where he there is a murderer out there. And hes not that murderer. Reporter it all follows the case of steven avery and his longngourney through the criminal justice system. A journey which began more than 30 years ago in manitowoc, wisconsin. Makin