Yale's high public profile led to three on-campus bombings. On May 1, 1970, an explosive device was detonated in the Ingalls Rink during events related to the trial of
Black Panther Bobby Seale. On June
24, 1993, computer science professor David Gelernter was injured in his office on Hillhouse Avenue by a bomb sent by serial killer and Harvard graduate Ted Kaczynski, aka the Unabomber. On May 21, 2003, an explosive device went off at the Yale Law School,
damaging two classrooms.