He granted his slaves their freedom and became a defender of the rights of the Puerto Rican slaves .
In 1854 , Vizcarrondo returned to Puerto Rico and continued writing articles and expressing his ideas .
Vizcarrondo granted Vizcarrondo 's slaves their freedom and became a defender of the rights of Puerto Rico   Rican slaves .
In 1854 , Vizcarrondo returned to Puerto Rico and continued writing articles and expressing his ideas .