Bob Kulick was a guitarist who did several works for KISS and other bands, and whose brother Bruce was once the lead guitarist for KISS from 1984 to 1996. Recently, the brothers had a fall out over merchandise selling and Bruce's professional relationship with Gene Simmons and Paul Stanley, which had him as a guest in several KISS Kruises. Bob even threatened Bruce in his recent Instagram posts (now deleted) when he posted a picture of a gun implying he would use it on Bruce.
I'm a KISS fan and words are Bob committed suicide, but nothing has been confirmed so far.
https://ultimateclassicrock.com/bruc...-kulick-death/