Zits does not want to kill anymore and feels really bad about it He was forced to shoot a dead indians and did not like it he was throwing up when his partner shot him and felt bad for the kid but then his partner told him he had to shoot him or else he was going to shot him and kill him this is had for the boy and has made him deal with a lot leading him to pass out.
The AIM was was a team and they were agents a lot of stuff like Zits