Being left- or right- leaning politically makes it no more excusable than Hitler or Stalin was...or Timothy McVeigh or the Provos or the mob who killed Joseph and Hyrum Smith in Carthage, Illinois or the state militia gunning down strikers in the Pullman Strike or the Peterborough Massacre or....

I hope that we can learn from this individual what makes him tick and in that way hope to prevent such carnage in the future. Unfortunately, I don't believe can prevent such, not in this world.