The only appropriate response if someone threatens murder or commits murder over art is for anyone who cares about the freedom of expression to do MORE of the same. I don't describe myself as a "free speech absolutist" but I AM a fanatic when it comes to the position that it's never an appropriate response to commit violence over a drawing or a cartoon. In my mind, there should never be a "but" behind that sentiment... especially not when it's coming from someone who has made their living drawing cartoons, like Gary Trudeau
In honor of Gary Trudeau's fucked-up outlook are a trio cartoons I did a few years ago for the "Everybody Draw Mohammed" craze. I figured I'd practice what I preach.
And if you feel pain or feel like I should die because the cartoons are badly done or because they feature magical, soul-searing images of the Prophet Mohammed, I really don't care. I do suggest you seek the services of a good psychiatrist, however. You clearly have issues that need to be worked out, and that may only be treatable with anti-psychotic medications.
Trivia: The first image led to the idea that became the "Jihad Fairie Activity Page" cartoons.