Here is facebook’s post from Erkan Sulcani:
RIP JOHN ‘BAD BONES’ KLINGER
1984 – 2024 
LET THIS POST GO AROUND THE WORLD
Today, 20.05.2024, my BLOOD BROTHER is John Klinger a few days after his 40th birthday. Birthday, gone completely unexpectedly.
It doesn’t feel real writing these words. John ‘Bad Bones’ Klinger was already a star when I took my first steps in the wrestling business. He was one of my first role models. Over the years he became a coach, a friend and a brother. In the ring we been blood brothers for years, behind the scenes we became real brothers. And I looked up to my big brother John until the last and I will until the day I die. For me, you were ONE OF THE BEST IN THE WORLD. 
Yesterday we loudly and funly celebrated the beginning of a new phase of life for you. We thought we had plenty of time left with each other. Instead, this party turned into a farewell party.
I continue to look up to you my brother. And I know your looking down on me now. For me, you have been one of the most honest, respectful and loyal people. Thank you for letting me know you and learn a lot from you. A part of me died yesterday too.
We’ll always be brothers John. Your legacy will never be forgotten. May your soul rest in peace my big brother. Amen. 
BLOOD BROTHERS 4 LIFE AND BLOOD BROTHERS 4 EVER!