Despite Tommy D killing Foxy, and Gotti knew about it. Since the murder was witnessed by his sister. This was in 74 I think, and it wasn’t until around 4-5 yrs later did Tommy get killed. Gotti could have killed him anytime but Burke was dating Tommy’s sister that kept him alive possibly

I’ve heard conflicting versions ie Gotti sought permission from the Lucheses (but then why did it take 5 yrs). or Paulie heard Tommy tried to rape Karen whom he was screwing, and decided to let Gotti finally kill him.