Malcolm Young, Whose Guitar Riffs Helped Propel AC/DC to Fame, Dies at 64 Mr. Young, who was a founder of the band, was known for his raucous energy. A family statement said he had had dementia for several years. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:The Breakdown: Vegemite, the Beloved Australian Spread, Goes UpmarketHe Was the Face of Liberia’s Endless War. Now He Wants to Govern.New Surge of Rohingya Puts Aid Workers Back on ‘Full Alert’Santa Rosa, Bob Corker, Harvey Weinstein: Your Tuesday Evening BriefingIn Hong Kong, It’s the Fans Who Protest During the National AnthemNiger Attack Lays Bare U.S. Troops’ Long Wait for Medical Help in Africa