1954 Shooting in the House Chamber | US House of Representatives: History, Art & Archives
On March 1, 1954, while Members gathered on the House Floor for an upcoming vote, three men and one woman entered the visitor’s gallery above the chamber and quietly took their seats. All four belonged to the Puerto Rican Nationalist Party and only hours e...
They also tried to kill Truman . https://www.historynet.com/president-harry-s-truman-survived-assassination-attempt-at-the-blair-house/
Skip about 15 mins to get buy the fluff. https://rumble.com/v1ktw37-whats-up-with-puerto-rico.html
This is another excellent video by Huntley and Groubert. If you have the time, watch it.