The author of new book that purports to have finally pinpointed the true identity of one of history’s most famed unknown murderers was in part inspired by the Johnny Depp-starring thriller From Hell. Published this week, Naming Jack The Ripper claims that a 23-year-old Polish immigrant and hairdresser called Aaron Kosminski was the man behind a string of bloody murders that terrorized London in 1888, sparking more than a century of references in popular culture. The book’s author, Russell Edwards, used DNA evidence found at one of the crime scenes to make the claims, but says it was the Hughes brothers’ 2001 film From Hell that sparked his curiosity.