sad news from the world of rock and roll

There has been speculation for months now about the medical condition of AC/DC rhythm guitarist Malcolm Young. This week, we finally got an answer. And it isn’t good news.

The family of founding AC/DC guitarist Malcolm Young has confirmed the illness that forced the 61-year-old to quit the band. “Malcolm is suffering from dementia and the family thanks you for respecting their privacy,” they said in a statement, according to People.

The group had previously announced in April that Young would be taking a break from the band and that it would be recording a new record without him. When AC/DC announced that it would be putting out the record, Rock or Bust, this fall, they confirmed that Young would not be returning to the band, “due to the nature of Malcolm’s condition.” They did not go into the specifics of the illness.

Young’s nephew, Stevie Young, played rhythm guitar in Malcolm’s stead on Rock or Bust. He will also be filling in for the elder Young on the group’s upcoming world tour in 2015.

Wow, that’s a tough break. Godspeed, Malcolm Young. Thank you for the years of rocking awesomeness.