Bill even if some people in that particular building - as opposed to the IRS as an institution - had robbed him of his livelihood, threatened his wife and insulted his mother (I'm trying to list the things that would piss
me off here
) he still needs to have a serious behavioral, mental or social problem to be driven to an act of attempted mass murder. Either that or he is just a self-pitying prima donna who thinks his problems, serious though they may be
to him, justify armageddon for everyone within the blast radius of his meltdown (tantrum).