No, this time Romulans were not involved. It was a war criminal by the name of Khan with the aid of deceiving admiral. [One of their own tried to kill them.]

The ship was compromised, so Jim... Jim went into core of the Enterprise, a place highly radiated to fix the issue. He had sealed himself in so as not to flood the rest of the ship and I watched him die.

[Spock couldn't face Vegeta as he told his story, his shoulder shaking in either rage or sorrow, he hadn't decided yet.] I went after Khan in an emotional rage with every intent on killing him, but I was stopped by one of my colleagues. She had said that Khan's blood could save Jim. I never found out, as in that moment I was transported here.