Fred Phelps, crazed leader of the Westboro Baptist Church cult, has become infamous for blaming any bad event on the evils of homosexuality. Earthquake in Haiti? Blame the gays. Combat troop deaths in Iraq? Ditto.
Phelps's logic works thusly: God literally hates people who engage in homosexual conduct and unless societies take the steps to ban and punish such action, God is going to destroy them. Any natural disaster or mass murder is, accordingly, the will of God being carried out on the "sinners" who refuse to listen.
If that type of "logic" sounds familiar, it should be. It's exactly the same as the explanations the far left is resorting to in its efforts to pin the recent Tucson, Arizona shooting onto conservatives like Rush Limbaugh, Sarah Palin, John Boehner, Glenn Beck, and the right generally.