How many did the unabomber kill?

The Unabomber, Ted Kaczynski, is responsible for three deaths. He conducted a nationwide bombing campaign from 1978 to 1995, targeting individuals involved in modern technology and industrial society. In addition to the fatalities, his attacks injured 23 others. Kaczynski was apprehended in 1996 and later sentenced to life in prison without the possibility of parole.