After Egyptian cartoonist Andeel took to social media to condemn the slaughter of colleagues in Paris, he received expressions of sympathy — often not for the victims but for the suspected Islamist gunmen.

Some respondents on his Facebook page criticized the attack at the offices of the Charlie Hebdo newspaper, in which 12 people — including several of France's top cartoonists — were shot dead Wednesday.

But Andeel was alarmed by the level of backing for the killings at the French weekly which is known for mocking religion, including Islam. The 28-year-old satirist said he fears voices of moderation are being drowned out because expressions of hate "are always a lot more colorful and loud."