The 18-year search for the Unabomber was the U.S.'s longest and most expensive hunt for a serial killer. Ted Kaczynski, a brilliant mathematician accepted to Harvard at age 16, sent 16 bombs handcrafted with wooden parts across the country from 1978 to 1995, killing three and wounding 23. Despite an accurate psychological profile, a $1 million reward and extensive forensic investigation, the FBI couldn't get a handle on the case. It took the 1995 publication of his rambling manifesto in the New York Times and the Washington Post for the bomber to be located: Kaczynski's brother David recognized the prose and tipped off the police. Kaczynski was arrested on April 3, 1996, at his Montana log cabin. He is serving a life sentence in prison without the possibility of parole. His brother still writes him monthly, without reply.
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