Nor can goodness and Evil be equal. Repel (Evil) with what is better: Then will he between whom and thee was hatred become as it were thy friend and intimate!
—Holy Qur'an Sura 41:34
Since the perpetrator of all this is turning out to be a small-time operator with multiple pseudonyms and a conviction on drug charges, this clearly isn't about the film anymore, but it already has become another outburst of rage, on the pattern of the Satanic Verses or the Danish cartoons, to be directed by organizers towards symbolic targets, but with real people dying in the process.
All this in defense of a Prophet who preached mercy and returning evil with good (see above), and of whom there is a hadith to this effect:
[The Prophet said] So I departed, overwhelmed with excessive sorrow, and proceeded on, and could not relax till I found myself at Qarnath-Tha-alib where I lifted my head towards the sky to see a cloud shading me unexpectedly. I looked up and saw Gabriel in it. He called me saying, 'Allah has heard your people's saying to you, and what they have replied back to you, Allah has sent the Angel of the Mountains to you so that you may order him to do whatever you wish to these people.' The Angel of the Mountains called and greeted me, and then said, "O Muhammad! Order what you wish. If you like, I will let Al-Akh-Shabain (i.e. two mountains) fall on them." The Prophet said, "No but I hope that Allah will let them beget children who will worship Allah Alone, and will worship none besides Him."There is also the ominous fact that the perpetrator seems to be a Copt, which could lead to new sectarian violence, especially in Egypt. I will have more to say on that a bit later.