Pro-ISIS Twitterati Respond to Paris Attack

As France and most of the world mourns, extremists on Twitter cheer.

The Twitter Inc. logo and signage is displayed on the facade of the company's headquarters in San Francisco, California, U.S., on Friday, Sept. 13, 2013.

Photographer: David Paul Morris/Bloomberg

The deadly attacks on the French magazine Charlie Hebdo elicited a torrent of support from the Islamic State supporters in the Twitterverse. These online messages cheering terror come from the same repository of smartphone warriors who celebrated violence in Ferguson, hostage-taking in Sydney and beheadings of journalists and aid workers. 

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