You're assuming choice there where it isn't present in all of my example. The character did make one choice, which precludes neutral. The choice(through behavior) is LN. When triggered(this is not a choice and therefore not an alignment switch), he goes berserk and kills everything around. He has issues, but switching alignment and being neutral are not among them.
Hey. I try to make people laugh, as you probably know from the sheer number of joke posts that I make. Any time I can do so, I count it a win. This world needs more laughter.
Completely agree, what I wanted to say about the fury is that it's apparently a well known factor in psychology, had some seminars about this as well. When you put someone under pressure, usually his temperament reinforces, but when the pressure mounts too much, there can be a brief case of inversion, usually extremely strong. Volubile people become even more so when pushed, but when they crack, they can go extremely quiet, and it's a bad sign. And the other way round, a calm, quiet person can become even more so under pressure, and then explode in violence when pushed too hard, e.g. Zinedine Zidane and the headbutt...
So I agree about the kingpin certainly being LE, which does not prevent him from exploding in chaotic behaviour when under extreme pressure. Still, his overall alignement does not change.