https://www.mercurynews.com/2022/01/24/silicon-valley-real-estate-developer-and-philanthropist-john-arrillaga-sr-dead-at-84/ > Renowned Silicon Valley real estate developer and philanthropist John Arrillaga Sr. has died. He was 84. > Arrillaga’s son-in-law, venture capitalist Marc Andreessen, confirmed the death via Twitter.