Famous for his nude protests while a student at the University of California-Berkeley, Martinez, a.k.a. "The Naked Guy," fought for the right to appear naked in public both on and off the Berkeley campus. Incarcerated and suffering from mental illness, he tragically committed suicide in his early thirties.
Before devoting himself to nude activism, he played football at Monta Vista High School in Cupertino, California.
During his college years, he was photographed for Playgirl magazine and was a member of a California theater troupe called The X-Plicit Players.
The son of Esther Krenn, he was born and raised in Santa Clara County, California.
He and sex education advocate and fellow activist Laci Green both attended the University of California, Berkeley.