The Unabomber was a “criminal mastermind” who went to extraordinary lengths to erase any trace of physical evidence within his explosives. He ripped the skins off batteries to make them untraceable. He also avoided commercial glue and instead made his own epoxy by melting down deer hooves
After the Unabomber demanded in 1995 that his manifesto, Industrial Society and Its Future, be published in a major newspaper as a condition for ceasing his mail-bomb campaign, The New York Times and The Washington Post published the manifesto, hoping somebody would recognize the writing style of the author.