[Pikachu_Dad]

No, lets ban all wives instead !!!

[El Gato]

Early information indicates Russell may have been nearing a suspension at work and was possibly having gambling problems, he said. He also may have been having marital problems and become separated from his wife, Johnsen added.

The real cause is that this guy is a miserable loser. It's just a good thing that he was not a creative loser. A truly creative loser would likely come up with something much more spectacular than grabbing a .40 caliber Glock and plinking individuals.