They do hire the BEST hit men, for sure. Everything about this guy, that I know of, DOES NOT point to suicide, particularly the part about having 2 school-aged kids.
...and of course there may be other reasons that I don’t know about.
I agree that this man had everything to live for and it’s very odd that he’d commit suicide. But if threatened enough and if convinced these threats were credible and it was just a matter of time and if his family were threatened if he didn’t off himself, then very possible..