In the book "A Mind for Murder: Harvard and the Unabomber", by Alston Chase, William Monahan is identified as being the only person to solve the bomber's lexically-based targeting methodology before the Unabomber's capture.

I wanted to be an old-fashioned man of letters, so I essentially prepared myself very carefully through my 20s for a job that doesn't exist anymore....Just before all this happened, I thought, 'Out of everything you can do or think you can do, pick one thing and be it.' What I picked was to be the screenwriter.