I totally understand what you are saying about Baldwin's personality and demeanor for the most part, and I have seen his past behavior as well. But even given that, that doesn't mean he isn't remorseful, or regretting the event that happened that day.
And I also agree, if the shoe were on the other foot, it's very likely that he would act just as you describe.
But, this tragic incident, could be a turning point in his life. And someone to say he Baldwin has no remorse about this incident, without knowing him personally, IMO is just projection their own hatred about Baldwin with little regard to truth or facts.
At this point, until facts or the truth say otherwise, I'll give him the benefit of the doubt as far as his feelings and emotions.
I respect that.