"We are devastated by the news that our dear friend Alec John Such has passed away... Alec was an integral part of the creation of the band... We will miss him," the rock band tweeted.
Sach played in the band for 11 years and left in 1994.
In 2018, the musician returned to Bon Jovi for the Rock and Roll Hall of Fame induction event in Cleveland, Ohio.
On May 28, Vadim Saralidze, a violinist known for his collaboration with the Crematorium rock band, died at the age of 63.