El Grito de Sunset Park started in 2001 that had gathered after the Puerto Rican Parade in Manhattan, New York as an organized "cop watch" program. It took action to document the chaotic relations between police and community members. El Grito de Sunset Park officially became an organization in 2005 after acquiring a large backing by the community for its need of it. The founders are Dennis Flores, Jason del Aguila, and Noelle Flores Théard.