I am rereading DT7 (it is tearing my heart apart so I need to put it down time to time) and I am at the part where Roland and Jake try to find the guards who didn't get killed in the face to face battle.

Jake himself is surprised to see that Roland doesn't kill the rest of them. They can go.
Right now I cannot put it anywhere.
Why did he do it?

I have 2 options in my head:
- He didn't feel like killing. His ka-brother was dying and well.. he was moved by that too much. He might have been tired of death. Giving or receiving.
- It was a some kind of punishment. They had nowhere to go so only death, slow death was waiting for them out of Algul Siento.

What do you think?