Unabomber Arrest Marks End of Two-Decade Terror Campaign. On April 3, 1996, federal law enforcement concluded one of America's longest and most complex criminal investigations when agents arrested Theodore Kaczynski at his remote cabin in Montana. The former mathematics professor at UC Berkeley had eluded capture for nearly two decades while conducting a sophisticated bombing campaign that claimed three lives and injured twenty-three others across the United States. Kaczynski's crimes began in the 1970s and continued through the 1990s, targeting academics, business executives, and airline officials with increasingly refined explosive devices sent through the mail. His capture came after extensive FBI investigation, code-named UNABOM, which represented unprecedented coordination between federal agencies.
