AC/DC founding member and rhythm guitarist Malcolm Young has died at 64. Young, who had been suffering from dementia for the last three years, had been replaced by his cousin Stevie on guitar for the Rock or Bust, the band’s most recent album and tour. It’s being reported that he died with his family by his bedside. The following note, which appears to have been written by Angus young, appeared on the band’s Facebook page:

Today it is with deep heartfelt sadness that AC/DC has to announce the passing of Malcolm Young.

Malcolm, along with Angus, was the founder and creator of AC/DC.
With enormous dedication and commitment he was the driving force behind the band.
As a guitarist, songwriter and visionary he was a perfectionist and a unique man.
He always stuck to his guns and did and said exactly what he wanted.
He took great pride in all that he endeavored.
His loyalty to the fans was unsurpassed.

As his brother it is hard to express in words what he has meant to me during my life, the bond we had was unique and very special.

He leaves behind an enormous legacy that will live on forever.

Malcolm, job well done.

Tributes are already starting to roll in from rock and metal’s elite.