 In February 1996, Bisceglie provided a copy of the 1971 essay written by Ted Kaczynski to the FBI. At the UNABOM Task Force headquarters in San Francisco, Supervisory Special Agent Joel Moss immediately recognized similarities in the writings. Linguistic analysis determined that the author of the essay papers and the manifesto were almost certainly the same. When combined with facts gleaned from the bombings and Kaczynski's life, that analysis provided the basis for a search warrant.
