What about the part where we hypothetically solved their problems? Once we kill a few people, have we crossed a line that keeps us from being ethical, higher-le

What about the part where we hypothetically solved their problems? Once we kill a few people, have we crossed a line that keeps us from being ethical, higher-level beings? I find it interesting and instructive in situations like this to think about what it would take to make you or me go over the edge and just start killing people (I'm NOT justifying murder in ANY way, I'm just throwing this out there). As I said above, these people did it for some reason, despite most or all of them knowing that there was a punishment involved...what is the reason? If we uncover it, can we help them and maybe release them into society? Why is my response starting to sound like a bad paper for an undergrad philosophy course? (-: