When a young nursing student, Maura Murray, vanished in 2004 under strange circumstances, she became the first prominent disappearance of the social media age. Since then, the investigation into Murray’s case has fueled a legion of online armchair detectives, causing an endless procession of blogs, books, websites and podcasts, becoming a rabbit hole of unexplored leads, eyewitness discrepancies, missing evidence, questionable actions and strange characters.