These 10 cases of unidentified serial killers are explored with an intention of understanding few of the most twisted minds the world has ever seen. In all these cases the murderer's identity remains unknown till this date, although various possible identifications of varying credibility have been proposed.
Movies based on serial killers and their heinous crimes are full of action and suspense. Such movies are full of gripping scenes where a city is reported witnessing one murder after the other and some psycho is on a killing spree leaving little or no traces behind for the investigative agency to work on.