University police, FBI agents and Cambridge, Mass., officers all responded on Monday when Harvard received messages claiming that bombs had been planted in four buildings. None were found and a student has been charged in the hoax. he allegedly wanted to avoid taking a test. Josh Reynolds/AP hide caption
SWAT team officers on the scene Monday at Harvard University in Cambridge, Mass. Four buildings on campus were evacuated after an unconfirmed report that explosives may have been placed inside. Elise Amendola/AP hide caption
Unabomber Ted Kaczynski being led into a Montana court in 1996. Elaine Thompson/AP hide caption