Personal theory.
W has been a cooperating witness from early on.
W knew he was busted and rolled on the rest to try to protect the family name.
No sauce.
No evidence.
He and his family have been so quiet for a long time now.
His reaction at the funeral.
It's suspicious.
This pic is the exact moment the others found out.
They made a deal with Trump and he is laying off of them in general.