I don't exactly remember why I killed Kitanna. I think it was because she seemed like a safe kill.
I killed Diamond because she was the taker and I hoped she would take another gifted down with her (and she did!

)
I killed Kath because the consensus was that she was pretty much innocent.
The kill that was thwarted by Kath was Roa. I wanted to kill her because she was too clever for my own good.

Curse you, Kath, why, o why did you have to protect Roa that night?!