NG sees the value in order and law, even when they're more than willing to ignore it at times. CG may follow the rules unless they can get away with skirting them. Both will likely feel empathy if the victims are innocent.
A LE person may wonder if the killings were sanctioned or if they were under their protection of the protection of their group, otherwise they don't care. A CE may be curious, wonder if it's one of theirs or simply shrug because suit happens, as long as it doesn't happen to them.
Whether another DM would have them respond exactly the same isn't particularly relevant. It's my tool and definition that matters if I'm the one running the PC. Even then, I've always been in the same general ballpark as other DMs.