They all know.
Teddy was blackmailed and a lightweight.
What would you do though if you were part of this family and all of your best kept dropping like flies.
It's an impossible situation to be in and it's incredibly sad what's happened to that family.
Like Joe, John, and Robert were all killed.
John and Robert were killed on TV.
Then you have John Jr who was obviously plotting his revenge.
John Jr has always made me incredibly sad. He was doing things you only do when you're trying to climb that political ladder the right way.
With his magazine George and his work in the NYC DAs office he was really in position to get his father's seat back the right way.
He had the name, the looks, the smarts, the money, the resume, and most importantly he had the motivation.
This is why he had to die. Dude was rod Stark on crack.