Career
Castro Ríos is known as one of the founders of the "Guajana" magazine and as one of the composer of the lyrics for "¡Coño, Despierta Boricua!" (along Miguel Ángel Hidalgo Vega (better known by his pen name "Guarionex Hidalgo Africano" and Francisco Matos Paoli), a famous patriotic Puerto Rican song related to the Grito de Lares. Castro Ríos died from a heart attack in 2006. Both his birth and death happened in Santurce, Puerto Rico.