When ex husbands go berserk: Bruce Jeffrey Pardo dressed as Santa opens fire at his in laws, killing six

I just read on Reuters the story coming out of Suburban Los Angeles. It seems an ex husband went berserk, went to his in laws’ house party dressed as Santa, opened fire, and murdered six people. When he was done with his shooting spree, he zipped out of his Santa outfit, set the house on fire and fled the scene. He later committed suicide.
This was a marriage that lasted one year, btw. No word whether his ex wife was one of the casualties.
Read the story here: http://www.reuters.com/article/domesticNews/idUSTRE4BO1A420081226