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SNEAK PEEK: Return to Manitowoc County: The State of Wisconsin vs. Steven A. Avery

01:45

In his first-ever television interview, Tom Fassbender, co-lead investigator in the Steven Avery case, responds to allegations that investigators coerced Avery's nephew Brendan Dassey into making a false confession. A special new hour of Dateline details the latest efforts to free Avery and Dassey, features rarely seen interrogation video and includes interviews with key players in the case. Andrea Canning reports Friday February 17 at 10/9c.