 Image caption Charb in 2012: Uncompromising in his defiance of Islamists 
 
 Stephane Charbonnier, editor of the French satirical magazine Charlie Hebdo, was among four cartoonists killed in the Paris massacre which left 12 people dead in total. He was the weekly magazine's most recent editor, having taken the reins in 2012. "If they are not amused by our cartoons, they don't need to buy our magazine. Translated, it says, "Still no attack in France," says the title. Image caption Charb (centre) is seen here with fellow cartoonists Tignous (left) and Cabu in 2011 
 
 Charb had strongly defended Charlie Hebdo's cartoons featuring the Prophet Muhammad. There were several caricatures of the Prophet on the inside pages, including some of him naked.
– Four beloved French cartoonists are among the dead in today's attack on the Paris office of satirical magazine Charlie Hebdo. Among them: Editor Stephane Charbonnier, or Charb. BuzzFeed reports the 47-year-old has had police protection since 2011 and was two years later added to al-Qaeda's most wanted list. In a 2012 interview with Der Spiegel, he had this to say: "If we worried about the consequences of each of our drawings in each of our 1,057 issues, then we would have had to close shop a long time ago. ... A drawing has never killed anyone." As for his own safety, he said, "I have neither a wife nor children, not even a dog. But I'm not going to hide." More: The other dead cartoonists are Jean Cabut, or Cabu, who has published cartoons in France for 60 years; Georges Wolinski, 80; and Bernard Verlhac, or Tignous, 57. The fifth journalist to be named is Bernard Maris, a 68-year-old economics professor who was the magazine’s deputy editor, reports the Guardian. The Wall Street Journal and the BBC report several of the dead were thought to have been in an editorial meeting when the attack occurred. Footage aired by French TV captures two masked attackers shouting, in French, "We have avenged Prophet Muhammad. We have killed Charlie Hebdo." The Guardian has graphic video of two gunmen shooting a police officer. Though the magazine's website was down for a period, it's now online and bears a single image with a phrase trending on social media: "Je Suis Charlie" ("I am Charlie"). John Kerry said as much today: "Each and every American stands with you today. Not just in horror or in anger or outrage ... but we stand with you in solidarity." The Week rounds up some reactions to the tragedy from cartoonists around the world who have responded in their best way: via cartoon. Another roundup: one from the Daily Beast on the magazine's 16 "most shocking" covers.