 Figueroa Cordero was sent to the federal penitentiary in Atlanta; Lebrón to the women's prison in Alderson, West Virginia; and Flores Rodríguez to Leavenworth, Kansas, where Oscar Collazo, who in 1950 attacked the Blair House in a failed attempt to assassinate US President Harry S. Truman, was incarcerated.Cancel Miranda, considered to be the primary shooter, received a prison sentence of 85 years and was sent to Alcatraz, in the San Francisco Bay.In July 1954, Cancel Miranda, inmate number 1163, was sent to Alcatraz where he served six years of his sentence.