Malcolm Young was a member from AC/DC.
AC/DC are an Australian rock band , formed in 1973 by brothers Malcolm and Angus Young . The band 's line-up remained the same until 2014 with Malcolm Young 's retirement due to early-onset dementia and Rudd 's legal troubles . Black Ice is an album by Australian hard rock band AC/DC . The first composing sessions between guitarists/brothers Angus and Malcolm Young were in London in 2003 . Black Ice is the final album to feature the Back In Black era lineup of the band , with founding rhythm guitarist Malcolm Young leaving the band in September 2014 after being diagnosed with dementia .