Family Guy creator Seth McFarlane’s brand of comedy thrives on shock value, but even he has to draw the line somewhere.

Just a day after the explosions at the Boston marathon, clips from a previously aired Family Guy episode were edited to seemingly depict the bombing and started circulating online. Fox pulled the upcoming episode of the show. McFarlane slammed the clips as abhorrent. Naturally, when the video surfaced, there were the conspiracy theorists, who started pointing to a planned attack by the US government. Others were offended and outraged by what seemed like an extremely inappropriate joke at the expense of the victims. Series creator and voice actor McFarlane tweeted this message about the clips: "The edited Family Guy clip currently circulating is abhorrent," he tweeted. "The event was a crime and a tragedy, and my thoughts are with the victims."

According to the network, the clips came from two separate parts of an episode, which aired earlier this year, entitled “Turban Cowboy”. Fox and many other US networks have been known to pull sensitive and potentially offensive material off air after national tragedies like the Boston bombing or the Newtown shooting of December 2012.

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McFarlane condemned the makers of the video in a twitter message. 

Family Guy in particular has been a frequent culprit, since the show is known for its dark humor at times, however it has never featured anything this blatantly offensive. The network is currently working with YouTube to take down all versions of the video and find its original source.