Flagpole I think you are missing a key point.
The people who committed this crime get offended if women intermingle with men, they get offended if little girls get an education, they get offended if other religions exist. A person who commits such a crime is out to end civilized society. They don't get a right to not be offended or to determine what other people can publish.
This editorial I linked to sums it up well:
http://www.vox.com/2015/1/7/7509265/charlie-hebdo-cartoons
"But we shouldn't buy into the bullshit narrative of a few madmen that their murders were a response to some cartoons. We shouldn't buy into it even if we're saying that murdering in response to cartoons is always wrong.
This is related to a point Charlie Hebdo made often and well. As my colleague Max Fisher wrote about the magazine's wonderful cover, "Love is Stronger Than Hate" (pictured above):
'Part of Charlie Hebdo's point was that respecting these taboos strengthens their censorial power. Worse, allowing extremists to set the limits of conversation validates and entrenches the extremists' premises: that free speech and religion are inherently at odds (they are not), and that there is some civilizational conflict between Islam and the West (there isn't).
These are also arguments, by the way, made by Islamophobes and racists, particularly in France, where hatred of Muslim immigrants from north and west Africa is a serious problem.
And that is exactly why Charlie Hebdo's "Love is stronger than hate" cover so well captures the magazine's oft-misunderstood mission and message. Yes, the slobbery kiss between two men is surely meant to get under the skin of any conservative Muslims who are also homophobic, but so too is it an attack on the idea that Muslims or Islam are the enemy, rather than extremism and intolerance.'
Allowing extremists to set the limits of conversation validates and entrenches the extremists' premises. That was true in the criticism of Charlie Hebdo's covers, and it's even truer in today's crimes.
These murders can't be explained by a close read of an editorial product, and they needn't be condemned on free speech grounds. They can only be explained by the madness of the perpetrators, who did something horrible and evil that almost no human beings anywhere ever do, and the condemnation doesn't need to be any more complex than saying unprovoked mass slaughter is wrong.
This is a tragedy. It is a crime. It is not a statement, or a controversy."