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I Hear Voices: A Descent into the Dark Half of Psychotic Killer, Herbert Mullin

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In broad daylight, Herbert Mullin calmly placed a rifle on the roof of his car, took aim at Fred Perez, and pulled the trigger without flinching. The fatal shot rang out, causing panic as a witness frantically called the police.

Compelled by the voices in his head, Mullins believed that human sacrifice would prevent a massive earthquake from striking California.

No one was safe.

Over a span of four months, Mullins brutally killed men, women, children, and a priest, without any hint of remorse.

Could anyone stop him in his quest for salvation?

I Hear Voices is a chilling account of Herbert Mullin, one of the most terrifying serial killers in American history. Ryan Green’s riveting narrative draws the listener into the real-live horror experienced by the victims and has all the elements of a classic thriller.

141 pages, Kindle Edition

Published September 23, 2024

151 people are currently reading
45 people want to read

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Ryan Green

93 books82 followers

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5 stars
55 (33%)
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58 (35%)
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39 (24%)
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8 (4%)
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2 (1%)
Displaying 1 - 17 of 17 reviews
Profile Image for Joanne Thompson.
12 reviews1 follower
December 22, 2024
Great book

Another well written book by Mr. Green, I was educated about the mental issues Mullin had that I didn't know about! Great read...
Profile Image for Kathleen Riggs.
591 reviews19 followers
September 23, 2024
Herbert Mullins lost his best friend in a car crash in high school, and he was also using drugs and took them to help hide the pain of his friend dying. Drugs may have helped trigger his schizophrenia, but it was no excuse for what he did.
Serial Killer Herbert Mullins terrorized the Santa Cruz, California, area at the same time the infamous Co-Ed Killer, Edmund Kemper, was active. Unlike Kemper, Mullin killed anyone. Young, Old, Men, Women, Children, and even a Priest whilst he was in a confession booth. Mullins did not have a type of person that he chose as his victim as anyone was fair game due to Mullins claiming he heard voices telling him to kill people to save the world from being lost to severe earthquakes that will destroy earth. The voices in his head were constant and controlling, according to Mullins and his Defense Team, once he was caught and put on trial after killing 13 people.
Was he crazy or did he use schizophrenia as his excuse, hoping to get a lighter sentence. It was his excuse as he knew exactly what he was doing when he shot and killed the two young children whilst they played together in the front room. Once again, another Good Researched and Captivating Book on the Life of the Serial Killer Herbert Mullins by Ryan Green. I am part of the ARC group for Ryan Green, and I am leaving this review voluntarily.
Profile Image for Kim.
507 reviews5 followers
September 23, 2024
Another truly disturbing true story…

With his unique skill for transporting the reader into the mind of a serial killer, Ryan Green ushers us through the convoluted thought processes of Herbert Mullin, a supremely disturbed individual who believed that the human blood he spilled would mollify an enraged Mother Earth and prevent her extermination of all humanity. He saw himself as a leader, a savior, and the solitary hope of mankind. Others saw him quite differently. He was a drug addict, a paranoid schizophrenic, and quite frankly, a ruthless serial killer. He was responsible for 13 brutal deaths in California in the early 70s. His story is brilliantly depicted in riveting detail by a bestselling True Crime author that never fails to leave me astounded and mortified by the unspeakable things some people are capable of doing and why they think they can or should commit such heinous atrocities. Lock your doors, turn on the lights, and settle into your favorite chair for a frightening look at a real killer from our not-too-distant past. I highly recommend this book and this author to all those with an interest in true crime, criminology or psychology.
10 reviews
September 30, 2024
The Best of Ryan Green

After cutting my teeth on true crime stories written by the best True Crime Author ever to live(RIP-AR), I have had a difficult time enjoying the short stories by the True Crime 7, but this book by Ryan Green has been the best I have read yet.
From the very beginning Mr. Green takes you through Herbert Mullins life and the reasons he killed. Not like other books that only chronologically list the crimes then a very small bit about the trial and ending with the verdict. Mr. Green takes you through the appeals and the ending.
I would recommend this book to anyone who likes a shorter version of true crime.
Profile Image for Daniel Kupres.
258 reviews
September 24, 2024
Mullins mediocre mind

Herb Mullin a name I hadn’t heard before nor can I recall his story. Ryan dives deep into the mind of a man who killed 13 people with an ego that ultimately stopped him from reaching a higher number.

With many of the profiles Ryan has presented, there always seems to be a point of trauma in the person’s life that may provide that slight understanding of how it is they did what they did. But Herb Mullin, I can’t find that and neither could he. He wanted to blame his parents so bad. But instead took it out on complete strangers and old friends.
4 reviews
September 29, 2024
The combination of fictitious narrative interlaced with real details is intriguing and a new way for readers to experience true crime - it helps you delve into the mind and possible/probable thoughts of the killer, Herbert Mullin. Ryan Green works hard to give readers a real understanding of the criminal while ensuring that the victims are represented in a respectful manner. I found the addition of correspondence and interviews with Herbert Mullin towards the end of the book interesting.
Profile Image for jean.
6 reviews
November 18, 2024
Psychotic

This killer tried to blame all on schizophrenia and that was not the case. Truly interesting as to what he convinced himself of. Crazy how the mind works.
This is an intensely interesting book into the mind of someone who was delusional.
Glad he was stopped before killing more people.so sad for the families of his victims
Profile Image for Clive Willcocks.
292 reviews2 followers
September 26, 2024
Another well researched and written story from Ryan. O did not find this story as gripping as some of his others, hence 4 stars. I did in fact read it quite quickly. A must read if you like True Crime Stories
Well worth a read.
.
7 reviews
November 13, 2024
Enlightening

Although I had heard of Herb Mullin, I was not aware of how much his mental condition affected him. Ryan does a great job of getting into his head (difficult in itself!) and laying out the crime and punishment, always with sympathy for the victims
Profile Image for Gen Lindsey.
3 reviews
September 27, 2024
Hooked

First book that I have read in a long time. But I gobbled this book up and couldn't put it down! Ryan Green is a fantastic author, and I can't wait to read His next book!
Profile Image for Pamela Merritt.
48 reviews11 followers
October 6, 2024
Amazing story, well told

I admire this author who does excellent research. He pays special attention to the criminal state of mind.

Highly engrossing for psychology fans.
Profile Image for Zelda.
184 reviews5 followers
September 23, 2024
This is not just your usual true crime book. It is a sharp insight into the thoughts and feelings of a murderer whose deeds seem to have no rhyme or reason. It is an expose' into the random thoughts of a man with schizophrenia whose purpose in life seems to be to obey and take note of even the most horrific of those thoughts.
In some ways, this book was hard for me to read, as I had a son, who passed away almost 5 years ago, who also had schizophrenia. Some of the things he said and did were similar to Herbert Mullins. Illicit drugs also had a negative affect on him.
In other ways, this book gave me more insight into the random things that might go on in the mind of a schizophrenic. As the author noted, most people with schizophrenia are not violent towards other people. The conclusion is satisfying and ties everything nicely together. I highly recommend this book for lovers of true crime, especially those who are interested in what drives a person to commit murder while they have a mental illness.
Profile Image for Tam.
2,179 reviews54 followers
October 18, 2024
An absolutely chilling read! After the first few pages, I knew this was a book I wasn’t going to be able to put down, until I got to The End. Compulsive and gripping! Suspenseful, addictive and complex! Will keep you swiping the pages furiously. If you like absolutely unpredictable, twisted true crime as much as I do, you can't go wrong with this book!

*I received a complimentary ARC of this book in order to read and provide a voluntary, unbiased and honest review, should I choose to do so.
47 reviews
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January 15, 2026
I can’t decide if I like or dislike his writing in this book. I usually like how he tries to put us into the minds of the killer and their victims. This one just hit funny. I felt like his writing from the killers POV was creating excuses for his behaviours, and this was confirmed to me in the final chapter when talking of whether or not he truly was a paranoid schizophrenic or not. I’m sure there were other things as well that I just haven’t figured out yet, but this one just didn’t sit right with me throughout the first seven chapters.
696 reviews9 followers
September 27, 2024
This book paints a chilling picture of a psychotic serial killer. Herbert Mullin suffered from
a mental illness along with paranoia and delusions of grandeur. He killed thirteen people, including two children. This is a not to be missed true crime book, which I highly recommend to other true crime readers. I received an ARC of this book, and the opinion expressed is strictly my own.
214 reviews2 followers
December 4, 2024
ok i am hooked i have been reading all of these in the series for a couple days now they are short quick reads but so much information about these horrible people. These books are so good
Profile Image for Beverly Laude.
2,265 reviews43 followers
November 15, 2024
Once again, author Ryan Green has delved into the mind of a serial killer and given his readers some insight into the workings of a truly deranged individual. Herbert Mullin killed 13 people in a fit of schizophrenic fugue (at least, according to Herb), including 2 young children. At the same time as his killing spree, another serial killer was a work in the Santa Cruz, California area, making his capture even harder for the authorities.

In Herb's mind, he was a hero, committing the murders as human sacrifices in order to save humanity from horrific earthquakes. Claiming to hear voices telling him to kill, he sought out victims from all walks of life. However, this book will make you wonder if he was truly mentally ill or just too lazy to live a normal life, complete with earning a living.

Mr. Green does his usual thorough job of melding a killer's own words and thoughts with just enough embellishment to make this book highly readable. This book includes a lot of Mullin's actual rantings,which are definitely the stuff of nightmares. Some of his beliefs will leave you truly disgusted. If you "enjoy" the true crime genre, you can't go wrong with any of Mr. Green's books. With plenty of detail without a lot of filler, this book will keep you reading until the bitter end.

The audiobook version of this book is narrated by Mr. Green's usual narrator, Steve White, who does a fantastic job. His "just the facts" narration is perfect for this genre and makes the audiobook an easy listen.
Displaying 1 - 17 of 17 reviews

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