"Certain people" don't or wouldn't want a powerful, now convicted music and media mogul who knows more then his fair share about these same powerful types' proclivities to share what he knows or suspects to possible federal investigators or private detectives in the future.
Maybe not to the extent, scope or scale as Jeffrey Epstein mind you, but enough for some of them to not want to take a chance or risk allowing potentially devastating, embarassing information to get out.
That's why we might see an "mysterious accident" that conveniently gets covered up as a suicide, or suffering from severe depression or bipolar disorders.