The Most Dangerous Animal of All: Searching for My Father...and Finding the Zodiac Killer

Unabridged Audiobook

Written By: Susan Mustafa, Gary L. Stewart

Narrated By: Gary L. Stewart

Publisher: HarperCollins Publishers

Date: May 2014

Duration: 10 hours 51 minutes


Soon after his birthmother contacted him for the first time at the age of thirty-nine, adoptee Gary L. Stewart decided to search for his biological father. His quest would lead him to a horrifying truth and force him to reconsider everything he thought he knew about himself and his world.
Written with award-winning author and journalist Susan Mustafa, The Most Dangerous Animal of All tells the story of Stewart's decade-long hunt. While combing through government records and news reports and tracking down relatives and friends, Stewart turns up a host of clues—including forensic evidence—that conclusively identify his father as the Zodiac Killer, one of the most notorious and elusive serial murderers in history.
For decades, the Zodiac Killer has captivated America's imagination. His ability to evade capture while taunting authorities made him infamous. The vicious specificity of his crimes terrified Californians before the Manson murders and after, and shocked a culture enamored with the ideals of the dawning Age of Aquarius. To this day, his ciphers have baffled detectives and amateur sleuths, and his identity remains one of the twentieth century's great unsolved mysteries.
The Most Dangerous Animal of All reveals the name of the Zodiac for the very first time. Mustafa and Stewart construct a chilling psychological profile of Stewart's father: as a boy with disturbing fixations, a frustrated intellectual with pretensions to high culture, and an inappropriate suitor and then jilted lover unable to process his rage. At last, all the questions that have surrounded the case for almost fifty years are answered in this riveting narrative. The result is a singular work of true crime at its finest—a compelling, unbelievable true story told with the pacing of a page-turning novel—as well as a sensational and powerful memoir.


  • Amare Atwell

    Excellent book! Very detailed and unbelievable!!! You'll want to listen until it's over, I never wanted it to stop. Shocking to say the least.

  • Scott miller

    Every true crime reader must listen to or read this one. Best book I listened to all year. Amazing story to say the least. This will be a book I make sure I purchase the hard back and place in my personal library.

  • Gayle Brossard Mahoney

    OMG! If you remember the Zodiac Killer, you must listen to this book! Thank you Gary!

  • Carole Butler

    This book presents some compelling, but circumstantial, evidence that his father was the Zodiac Killer. The subject matter was interesting enough to keep me engaged even though the anteater is a little bland in the beginning. I can not blame him, though, because the author is the narrator and obviously not a professional. Towards the end you can tell how deeply he is moved still by what he is reading as he seems to choke up a bit. This made me more empathetic towards the author. I have read the forum in the website and there are a lot of negative reviews by people who have never even read the book or started the book and couldn't seem to finish it. I do not agree with these reviews of the book. The author clearly states at the beginning how he took some liberties with what he thought would have been the actual events, thoughts and conversations. I really liked this book and I hope this will compel the San Francisco Police to finally help Gary with his DNA tests.

Most Dangerous Animal of All: Searching for My Father...and Finding the Zodiac Killer

by Susan Mustafa, Gary L. Stewart

has successfully been added to your shopping cart

Most Dangerous Animal of All: Searching for My Father...and Finding the Zodiac Killer, Susan Mustafa, Gary L. Stewart