Biography
A Puerto Rican Communist activist also printed as Arroyo Zeppenfelt in the thesis. In 1958 civil rights hearings he testified that he had been arrested and detained for four days after the 1950 uprising without explanation or a judicial warrant. Exact endpoints are not supplied. Source: José Manuel Dávila Marichal, Organizando la revolución: El Ejército Libertador del Partido Nacionalista de Puerto Rico y la insurrección nacionalista de 1950 (Universidad Autónoma de Madrid doctoral thesis, 2020), physical/printed page 547; SHA256 be07767792e7789d4683e0c5787caac280ca95b7f4c93adf2fbfbab5e7a48eb4.