Harvard Grad To Life In Prison: The Unabomber’s Backstory Will Blow Your Mind
He Wasn’t Caught For 17 Years Because The Bombs Were So Well Made

Photo credit: @0xUID / Twitter
Kaczynski’s intelligence was apparent in his homemade bombs. The bombs were all made by hand with parts you could buy at any hardware store. He would scratch out any identifying serial numbers or markings.
He even traveled days by bus to buy the parts and mail the bombs so no one could track it back to Montana.