Here we go, she must be a bad lady cause she posted a pic of herself with a gun, on her personal website. Neither article actually says why the pic was in bad taste or what rule/law/school policy it violated, I suspect it was just not PC. They certainly don't mention the picture was taken on school grounds, just that it was just "in poor judgement".
http://www.foxnews.com/story/0,2933,488567,00.html
http://www.wkowtv.com/Global/story.asp?S=9794724
cheers