Ted Kaczynski
Theodore John "Ted" Kaczynski (May 22, 1942 – June 10, 2023) was an American mathematician who was known as the Unabomber. Between 1978 and 1995, Kaczynski engaged in a nationwide bombing campaign against people involved with modern technology, planting or mailing numerous home-made bombs, ultimately killing a total of three people and injuring 23 others.