Don't tell me this MF killed Lionheart!

I finished Chapter 17 of "Into the Wild" just yesterday, everyone seems fine except an elder or two and Lionheart. Neither me nor Firepaw saw Tigerclaw in the battlefield (when ShadowClan attacked the camp). Ravenpaw seems distressed that Tigerclaw became a deputy.
This MF killed a deputy just to become a deputy himself...

Did the f**ker kill Lionheart too?
Please tell me I'm wrong, PLEASE!

TIGERCLAW CAN'T BE THIS DEGENERATE, RIGHT?