Next time you're settling down on the evening and you pop an audiobook on while you relax, bear in mind that you may well be chilling out to the dulcet tones of a convicted serial killer.
No, we're not taking the piss. An actual serial killer is the voice behind many of the world's best-selling audiobooks, reports the A.V Club.
After murdering his grandparents at the age of 15, Edmund Kemper began to target young female hitchhikers. He would lure them into his car, drive them to quiet areas, murder them and then take their bodies back to his home to be violated and then chopped up into little bits.
Following his initial killing spree, he murdered his own mother and one of her friends - a total of ten victims.
Kemper is now serving eight life sentences and to pass the time, he runs a programme whereby inmates record audiobooks.
The programme, known as Volunteers of Vacaville or the Blind Project has inmates record thousands of books; best sellers, textbooks, mysteries, science fiction, Westerns, children's books and cookbooks onto tape cassettes.
"I can't begin to tell you what this has meant to me, to be able to do something constructive for someone else, to be appreciated by so many people, the good feeling it gives me after what I have done," Kemper said.
Between 1977 and 1987, Kemper had spent over 5,000 hours in the recording booth, had more than four million feet of tape and several hundred books to his credit.
These included titles such as: Flowers in the Attic, The Glass Key, Merlin's Mirror, Petals on the Wind, The Rosary Murders, Sphinx, and Star Wars.
Credit: Santa Cruz Police Department
Kemper was known for the brutal nature of his crimes. He would often engage in necrophilia and is known to have consumed the flesh from at least one of his victims.
Those victims stood little chance against him once he had singled them out. He was 6' 9" tall, weighed over 250 pounds and had an IQ of 145.
He was quoted by popular true crime and mystery magazine Front Page Detective in 1973 as saying: "At first I picked up girls just to talk to them, just to try to get acquainted with people my own age and try to strike up a friendship.
"Then he began to have sex fantasies about the girls he picked up hitchhiking, but feared being caught and convicted as a rapist So, he said: "I decided to mix the two and have a situation of rape and murder and no witnesses and no prosecution."
You can find out more about Edmund Kemper and his crimes in the new Netflix series Mindhunter, which is available for streaming now.