The 19-year-old son of former YouTube CEO Susan Wojcicki was found dead at the University of California, Berkeley, on Tuesday, his grandmother said on Facebook. A student who lived at the Clark Kerr Campus – a student housing complex – was found unresponsive Tuesday at about 4:23 p.m. local time, UC Berkeley spokesperson Janet Gilmore said. The victim’s grandmother, Esther Wojcicki, confirmed his death and his identity in a Wednesday Facebook post.