Here, Douglas, former FBI unit chief and the creator of the Unabomber's first FBI profile, and Olshaker deliver the inside story behind the dramatic and fascinating manhunt for the Unabomber. The April 3rd capture of Theodore J. Kaczynski, the alleged Unabomber, ended the longest and costliest manhunt in FBI history. The bestselling authors of Mindhunter bring expert knowledge and first-hand experience on the Unabomber investigation to this thirlling account of the FBI's 18-year search.