Runs in the family, his dad killed himself when he was a teenager.
On the "I won't kill myself!" shyt, the way he played it up with such fanfare sounds like the kind of shyt a narcissist would do to ensure people kept talking about him after his death. If he was actually worried then he could have spent all those years setting up elite deadmen's switches to expose his enemies rather than just getting a tat. If they killed him to hide something, why not just drop that info preemptively or have a program or friend drop that shyt after you're killed?
He was a rich man living life large with drugs and prostitutes and constant world travel. Sounds like he needed a ton of stimulation to get off, exactly the kind of guy who wouldn't be able to stand living the last 15-20 years of his life confined in a cell with relatively limited resources while his body and mind slowly degrades. He knew he's rather die than spend the rest of his life in prison and wanted to troll everyone one last time.