And over time, the serial killer became known as the Zodiac Killer, and the case of the Zodiac Killer became famous. It became iconic and true crime lore. Numerous documentaries have been made, TV shows, movies, books have been written, podcast after podcast has been recorded. And after all of this time that started in the late 1960s. Here we are, October 6, 2021. And guess what has remained unknown this entire time? Who was the Zodiac Killer?