Río Piedras massacre

1935 Río Piedras massacre
LocationRío Piedras, Puerto Rico
Coordinates18°23′59″N 66°03′00″W / 18.39972°N 66.05000°W / 18.39972; -66.05000
DateOctober 24, 1935
TargetSupporters of the Puerto Rican Nationalist Party
Attack type
Massacre, mass shooting
Deaths5 (4 were members of the Puerto Rican Nationalist Party)
PerpetratorPuerto Rico Police
  • Chief Elisha Francis Riggs

The Río Piedras massacre occurred on October 24, 1935, at the University of Puerto Rico in Río Piedras. Puerto Rico Police officers confronted and opened fire on supporters of the Puerto Rican Nationalist Party. Four Nationalist Party members were killed, and one police officer was wounded during the shooting.