John Gensler a former police officer and now college professor was penpals with the Unabomber during his time studying for his master’s degree.

The Unabomber was a lone wolf bomber who sent bombs through the mail. He killed three people and severely injured twenty-three others. His purpose for the bombings was to destroy technology and overthrow the government.

When Gonsler was studying for his Master’s degree he mainly studied serial killers. He sent many letters to numerous serial killers, but only Ted Kaczynski responded. Kaczynski is known for being the infamous Unabomber.

Gonsler intended on interviewing Kaczynski on who he is for research, but Kaczynski only wrote about the corrupt government and destroy technology. Gonsler received a letter from the Unabomber’s followers saying they needed to “overthrow the technological government”.

In the 8 months of being penpals with the Unabomber, Gonsler has five handwritten and signed letters from Kaczynski. He said, “He (Kaczynski) had the neatest handwriting I have ever seen in my entire life.” and that all the letters were signed “Sincerely Yours” from Kaczynski.