John Arrillaga, the billionaire philanthropist who helped develop the modern Silicon Valley before becoming one of its most prolific and generous donors, died Monday morning at the age of 84, his family announced.
John Arrillaga, the billionaire philanthropist who helped develop the modern Silicon Valley before becoming one of its most prolific and generous donors, died Monday morning at the age of 84, his family announced.
John Arrillaga, the billionaire philanthropist who helped develop the modern Silicon Valley before becoming one of its most prolific and generous donors, died Monday morning at the age of 84, his family announced.