"Jack was also intent on strangling the life out of him. We have no idea what actually killed him."
She turned to John. "I'm not certain how many he has remaining, and I don't intend on testing it. The Doctor and Master who wear roses, and the Jack who resides with them also went." She was silent for a beat. "He shot Jack, who of course came back. He then went for me, and the Master I think we have all come to respect shoved me out the way. To my great regret, that shot forced him regenerate as well. His partner and Jack are with him."