Death doesn't like Norman Osborn, it seems.

[Because really, they were all pretty convinced he was dead before Ben died.]

Sergei Kravinoff blew his brains out years ago after he couldn't defeat you. Then last year his family of psychopaths decided to resurrect him. [With Kaine as the sacrifice.] From what I can gather from his deranged daughter, they succeeded.

And what's this about White Tiger?