

The Unabomber was the target of one of the most expensive investigations in the Federal Bureau of Investigation's (FBI) history. Before Kaczynski's identity was known, the FBI used the handle "UNABOM" ("UNiversity and Airline BOMber") to refer to his case, which resulted in the media calling him the Unabomber. His brother recognized Ted's style of writing and beliefs in the manifesto and tipped off the FBI. To avoid the death penalty, Kaczynski entered into a plea agreement, under which he pled guilty and was sentenced to life in prison with no possibility of parole.

The SuperMax prison in Florence, CO
Ted Kaczynski on Wikipedia.
