Terry Mosher, the longtime cartoonist for the Montreal Gazette, called the attack at Charlie Hebdo "devastating and shocking."
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Hooded gunmen shot dead at least 12 people, including four cartoonists, in the worst militant attack on French soil in recent decades.
Another 20 people were injured, five critically, in the incident. Paris police union official Rocco Contento described the scene inside the offices as "carnage."
“These are colleagues who are very, very courageous people in my field who put their opinions out there in a very straightforward and satirical way,” Mosher said.
Mosher said satirical cartoons are “an accepted part of any free system.”
“Knowing the fibre of cartoonists, they’re going to react in a very strong way to this all over the world," he said.
“The question will become, ‘What will actually get printed? How cautious will editors be?’”
Yannick Lemay, a cartoonist for Le Journal de Québec, didn't take long to come up with his own interpretation of the events, posting a cartoon today of a copy of Charlie Hebdo with blood spattered around it.
André-PhilippeCôté, a cartoonist with Le Soleil, said he is worried the shooting could foster an atmosphere of fear and cause some to censor themselves for fear of reprisal.
Côté said newspapers should have the right whatever they choose without the threat of violence.
A vigil for the victims of the Paris shooting is planned for tonight at 6:30 p.m. ET at Montreal's French consulate.