The taking down of GS might be a secret action and hardly covered in the MSM. I don’t remember the MSM talking much about what really happened to one side of the world ruling pyramid late 2017. The Saudi’s had a sudden change in government that was an epic collapse for the globalists.
He is awfully old and sick looking. Heart attacks happen all the time.
However, if he violated certain laws relating to things like human trafficking, I think that certain seizure laws apply. (Laws which in general, I dislike.) This would need to be done openly to remove the money from his control.