Quote Originally Posted by Kraco View Post
It's taking him either to a world free of titans or his own death.
Both really. He IS a Titan after all. So after killing all the other titans, if he really wants to rid the world of titans once and for all, he has to kill himself too.

Quote Originally Posted by Buffalobiian View Post
What happens if killing all the titans involves killing civilians?
It already did. In order to beat Annie he had to throw her through a bunch of inhabited buildings, killing people inside.