How gangs in San Quentin operate, according to a former prison gang member

John "Boxer" Mendoza is a former high-ranking member of the Nuestra Familia. He was part of the organization from 1994 to 2007 and was incarcerated at various California prisons, such as San Quentin, Pelican Bay, and Corcoran. He was a member of the Nuestra Raza before rising to the rank of commander in the Nuestra Familia. Nowadays, he has a YouTube channel called Paradigm Media News, where he does interviews with other former gang members and talks about life since leaving prison. He is the author of "Nuestra Familia."