How 'Unabomber' was caught after 17 years

Ted Kaczynski, the “Unabomber,” carried out a 17-year bombing campaign that killed three and injured 23 others. The FBI’s breakthrough came after his 35,000-word manifesto was published in 1995. His brother recognised similarities to Kaczynski’s earlier writings, leading investigators to his Montana cabin, where bomb-making materials and crucial evidence were found.