![Amazon.com: The Toolbox Killers: A Deadly Rape, Torture & Murder Duo: The Serial Killer Books, Book 3 (Audible Audio Edition): Jack Rosewood, Rebecca Lo, Kevin Kollins, LAK Publishing: Audible Books & Originals Amazon.com: The Toolbox Killers: A Deadly Rape, Torture & Murder Duo: The Serial Killer Books, Book 3 (Audible Audio Edition): Jack Rosewood, Rebecca Lo, Kevin Kollins, LAK Publishing: Audible Books & Originals](https://m.media-amazon.com/images/I/61+mAUG6YeL.jpg)
Amazon.com: The Toolbox Killers: A Deadly Rape, Torture & Murder Duo: The Serial Killer Books, Book 3 (Audible Audio Edition): Jack Rosewood, Rebecca Lo, Kevin Kollins, LAK Publishing: Audible Books & Originals
![Toolbox Killer' Lawrence Bittaker's murder tape left criminologist 'sick,' doc says: 'Severe case of torture' Toolbox Killer' Lawrence Bittaker's murder tape left criminologist 'sick,' doc says: 'Severe case of torture'](https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2021/10/1200/675/Toolbox-Killer-Victims.jpg?ve=1&tl=1)
Toolbox Killer' Lawrence Bittaker's murder tape left criminologist 'sick,' doc says: 'Severe case of torture'
![TIL A tape created by the Tool Box Killers, Lawrence Bittaker and Roy Norris, detailing the torture of their final victim, Shirley Lynette Ledford, is used to desensitise FBI agents to violence. TIL A tape created by the Tool Box Killers, Lawrence Bittaker and Roy Norris, detailing the torture of their final victim, Shirley Lynette Ledford, is used to desensitise FBI agents to violence.](https://external-preview.redd.it/_mjqp1ImZdPFch70HGR6z-agt9_DCGdfcsvSfouxfvY.jpg?auto=webp&s=f2378369eeb23a9ec5e8f6a2c0de494de961796b)
TIL A tape created by the Tool Box Killers, Lawrence Bittaker and Roy Norris, detailing the torture of their final victim, Shirley Lynette Ledford, is used to desensitise FBI agents to violence.
![Toolbox Killer' Lawrence Bittaker's murder tape left criminologist 'sick,' doc says: 'Severe case of torture' Toolbox Killer' Lawrence Bittaker's murder tape left criminologist 'sick,' doc says: 'Severe case of torture'](https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2021/10/1200/675/Getty_Toolbox_Killer_Victims.jpg?ve=1&tl=1)
Toolbox Killer' Lawrence Bittaker's murder tape left criminologist 'sick,' doc says: 'Severe case of torture'
![Toolbox Killer' Lawrence Bittaker's murder tape left criminologist 'sick,' doc says: 'Severe case of torture' Toolbox Killer' Lawrence Bittaker's murder tape left criminologist 'sick,' doc says: 'Severe case of torture'](https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2021/10/1200/675/Peacock_LawrenceBittaker_LauraBrand_Documentary.jpg?ve=1&tl=1)
Toolbox Killer' Lawrence Bittaker's murder tape left criminologist 'sick,' doc says: 'Severe case of torture'
![Toolbox Killers: Film details murders by a pair of ex-cons so sadistic that jurors and lawyers wept | The Independent Toolbox Killers: Film details murders by a pair of ex-cons so sadistic that jurors and lawyers wept | The Independent](https://static.independent.co.uk/2021/11/07/16/Screen%20Shot%202021-11-07%20at%2011.39.57%20AM.png?width=1200&height=900&fit=crop)