Married, father of three daughters, Arellano used to work as a superintendent for an apartment complex in Pomona and had recently been to night school to obtain his license as an air-conditioning repair technician.
Casado, padre de tres hijas, trabajaba como intendente de un complejo de departamentos en Pomona, había ido a la escuela nocturna para obtener su certificado de técnico en reparación de aires acondicionados.