November 1st 1950. Puerto Rican pro-independence nationalist Oscar Collazo lies wounded at the base of the steps to Blair-Lee House, President Truman’s temporary residence in Washington, D.C., after a failed attempt to assassinate Truman Nov. 1, 1950. Truman was living in Blair House because the White House was undergoing the repairs. Collazo’s accomplice Griselio Torresola and a Secret Service agent were both killed in the gun fight outside the residence. The president was never in serious danger during the attack. (AP Photo/ Harvey Georges)
Collazo was sentenced to death, which was later commuted by Truman to a life sentence. He was finally pardoned by Jimmy Carter in 1979.