A comedian makes a gaffe when attempting to respond to a heckler - clearly he supports rape, serial killers and Pol Pot!
Anyways, it's quite likely that this story was incorrectly told by the media. The manager of the comedy club tells it in a fairly different light and according to him, the joke was actually a joke (albeit crude to the point where even I find it to be offensive). Apparently the audience found it hilarious but the blogger got her feelings hurt.
http://www.buzzfeed.com/amyodell/comedy-club-owner-says-daniel-tosh-incident-has-be