KISS icon Gene Simmons shared his thoughts and prayers on Twitter, after the sad death of former lead guitarist Bruce Kulick’s older brother Bob Kulick at the age of 70.

Recently on Twitter, the legendary bass player of KISS, Gene Simmons wrote a sad goodbye to another member of KISS family, Bob Kulick.

On May 30, his older brother and a long-time member of the band Bruce Kulick shared the devastating news about his brother’s death via his official Twitter account:

“I am heartbroken to have to share the news of the passing of my brother Bob Kulick. His love of music and his talent as a musician and producer should always be celebrated. Please respect the Kulick Family’s privacy during this sad time. RIP”

Bob was auditioned for KISS in the early 1970s, but he lost out to Ace Frehley. However, his relationship with the band continued and later Bob added the guitar parts to ‘Alive II’, ‘Unmasked’, ‘Killers,’ and ‘Creatures of the Night.’

Musicians who had worked with Bob Kulick mourned after the death of the talented musician and producer. The official Twitter account of the band, KISS shared a tweet stating the thoughts and prayers of all the band members and KISS family:

We are heartbroken. Our deepest condolences to the Kulick family in this difficult time.

The iconic bass player, Gene Simmons also shared a tweet on his Twitter account to pay tribute to Bob following his devastating death:

Very sad…Rest In Peace, Bob Kulick.

You can see the tweet Gene Simmons shared on Twitter below.