Ted Kaczynski had been a boy genius. Then he became the Unabomber. After years of searching for him, the FBI finally caught him in his remote Montana cabin, along with thousands of pages of his writing. Those pages revealed Kaczynski's hatred towards a field of psychology called "behaviorism," the key to the link between him and James McConnell.

This is part two of a three-part series from our colleagues at The Stakes. If you haven't heard part one, listen here first.

In this episode, we hear from:

- Philip Bradley, Harvard contemporary of Ted Kaczynski

- Alston Chase, author of A Mind for Murder: The Education of the Unabomber and the Origins of Modern Terrorism

- Donald Max Noel, former FBI agent and author of UNABOMBER: How the FBI Broke Its Own Rules to Capture the Terrorist Ted Kaczynski

- Dr. Charles Seigerman, former student of James McConnell and Certified Neuropsychologist

- Greg Stejskal, former FBI agent

- Larry Stern, Professor of Sociology at Collin College

Hosted by Kai Wright. Reported by Amanda Aronczyk.