Updated

Bizarre rumors that began with a leaked email referencing Hillary Clinton and sinister interpretations of references to pizza parties morphed into fake news stories about a child sex trafficking ring run by prominent Democrats operating out of a Washington, D.C., pizza joint.

On Sunday, it culminated in violence when police say a North Carolina man fired an assault rifle inside the Comet Ping Pong restaurant as he attempted to "self-investigate" the conspiracy theory known in the Twitterverse as "Pizzagate."

No one was hurt and the man was arrested. But the shooting alarmed those from neighboring businesses all the way to the White House about the real life dangers of fake news on the internet.