Book excerpt: Toward a Theory of True Crime Narratives vivifies how nonfiction murder stories are told, what role they play in society, and in the form of true crime why they remain enduringly popular internationally on every platform. This book establishes for the first time the actual line—or dotted line—between mainstream journalism and the multimedia phenomena of true crime. Presenting a stable definition of what is—and what is not—true crime will either challenge or justify Truman Capote’s claims regarding the creation of a "new journalism" with In Cold Blood, and accordingly expose the reluctance of the promoters of NPR’s Serial, HBO’s The Jinx, and Netflix’s Making a Murderer to refer to their products as such. This research codifies true crime texts of various types on multiple platforms—radio, television, print, digital, and film—to reveal the defining characteristics of the genre.