Serial Slaughter is the story of the infamous Zodiac Killer. The killer roamed California, especially Northern California for decades. Announcing himself with dramatic flair corresponding with Law Enforcement & the media in order to gain the attention he craved. “This is the Zodiac Speaking” & “This is the murderer of the 2 teenagers last Christmas at Lake Herman & the girl on the 4th of July.” Making sure they knew his kills, connecting the dots for them. Fading away as promised in 1969, he continued to kill & would cease to “help” those who would hunt him. Details included that had never been discovered or talked about. New interviews with those woven into the story as unwitting characters in this dramatic play, these crimes are looked at, thoroughly researched, investigated, and written about with a new perspective, new evidence. 15 plus pages of exhibits, handwriting comparisons never seen before from Joseph DeAngelo's handwritten reports when employed as a cop. Investigated without bias from outside sources on the story Anne Penn as always does her own research and investigations into what happened. From police reports to archived newspaper articles she discovers for herself the story of what was a serial slaughter during the time of the Zodiac Killer and beyond. The FACTS included in this work support the theories inside in this amazing story of just what happened to the Zodiac after he walked away from just his Zodiac persona in 1969. He continued to kill right under the noses of all. As always Anne Penn has the information on cold case unsolved murders of women and girls that happened in this killers' hunting grounds. DNA solves must happen soon!