Ted Kaczynski, aka "Unabomber," died at the age of 81 behind bars, according to the Federal Bureau of Prisons. The man had sent a total of sixteen bombs killing three and wounding 23.
He was found unconscious in his cell early Saturday morning and the cause of his death was not yet known. The Harvard-educated mathematician had sent sixteen bombs, concealed in postal packages, to various people and companies in the U.S. between 1978 and 1995. In September 1995, promising to stop his bomb shipments, he got the New York Times and the Washington Post to publish a long manifesto.