[Very, very much alive.]

Bingo! Katara, the last waterbender of the Southern Water Tribe. She was my sister, my friend, the person I trusted more than anyone. You'd think she'd be more grateful for me not killing her after everything that happened.

[He waves his hand dismissively.] I don't feel like telling you that story right now..... hmm... so which death was your favorite? As in filled you with more despair than you've ever felt before?