FBI arrested Collazo's wife, Rosa, on suspicion of having conspired with her husband in the plan. She spent eight months in federal prison but did not go to trial. Upon her release, Rosa continued to work with the Nationalist Party. She helped gather 100,000 signatures in an effort to save her husband from execution. Acknowledging the importance of the question of Puerto Rico's status, Truman supported a plebiscite in Puerto Rico in 1952 on the new constitution to determine its relationship to the U.S. The people voted 81.9% in favor of continuing as a Free Associated State, as established in 1950. In memory Inside the Blair House, a plaque was installed to commemorate White House Police officer Leslie Coffelt. The day room for the U.S. Secret Service's Uniformed Division at the Blair House is named for Coffelt as well. See also United States Capitol shooting incident (1954) Cerro Maravilla incident List of United States presidential assassination attempts List of incidents of political violence in Washington, D.C. Río Piedras massacre Grito de Lares Puerto Rican Independence Party References External links Photo of the two guns (used in assassination attempt) in an exhibit at the Harry S. Truman Presidential Library & Museum, Independence, Missouri, US "Harry Truman Writes about the Assassination Attempt on His Life Just the Day Before: November 2, 1950", Shapell Manuscript Foundation Newsreel scenes of the assassination attempt on U.S. President Harry S Truman Truman Assassination Attempt, Ghosts of DC website, 2 May 2012 Political history of Puerto Rico Attempted assassinations of presidents of the United States 1950 crimes in the United States 1950 in Puerto Rico 1950 in Washington, D.C. November 1950 events in the United States