Violence is not the answer and I pray for the terrorists to be brought to justice, however, that does not make the victims in this case heroes or representatives of 'freedom of speech'.
Charlie Hebdo masquerades as a satirical magazine that pokes fun at power and hypocrisy, but this is a front. While Hebdo mocks everyone and everything on occasion they save their pure hate and venom for Islam. I suspect Hebdo is a Zionist front organization that is determined to start a war between Islam and the West (the Crusades and Occupation of Palestine and Iraq War weren't enough).
Charlie Hebdo is reminiscent of the thinly veiled racist rags popular in the South after the Civil War, but no longer accepted in the US, or the hateful publications published by some Muslim bigots against Jews today. Hebdo is no different.
Despite the Louvre France has a social streak of bigotry and sexism a mile wide. The hateful bigoted banning of the Burka is the prime example. If Charlie Hebdo wasn't a front for bigoted anti-Islam hate-speech then they would have vigorously and constantly taken the French government and society to task for the evil anti-Burka law, but no. Charlie Hebdo's reaction to France's banning of the Burka was to put on their cover a picture of a fully nude Muslim Woman gleefully shoving the Burka up her butt and exclaiming 'I'll wear it on the inside'. The French government's assault on the human rights of Muslim's was yet another excuse for Charlie Hebdo to attack them with pens.
Stop terrorism, stop violence and stop defending hate-speech.