Founding member of AC/DC Malcolm Young has died, according to the band's official Facebook page. Malcolm, with his brother Angus, founded AC/DC in 1973. He left the band in 2014 as a result of dementia. Today it is with deep heartfelt sadness that AC/DC has to announce the passing of Malcolm Young. Malcolm, along with... Although Angus Young is seen as the face of the band, Malcolm was always considered the driving force behind AC/DC. He wrote or co-wrote many of the band's best guitar riffs.