Still remains as one of the greatest mystery, even after so many investigations and suspects, The Zodiac’s identity remains unknown. Zodiac is a serial killer who is suspected of 7 assaults, though the numbers may rise to 30. A special trait of him was that he sent cryptographic and puzzling letters to both the police and the media, some consisting drawings, some consisted of his wishes. One letter in particular consisted a cipher which could lead to the identity of killer, but the cipher remains un-decoded. The Zodiac has since become a popular identity. He has since been depicted in various movies, plays, tv series, books and even in video games. The 2007 movie “Zodiac” was inspired from him featuring Jake Gyllenhaal, Mark Ruffalo, and Robert Downey Jr.