An assault rifle-wielding gunman's appearance at a Washington pizzeria that was falsely reported to house a pedophile ring has elevated worries over the unrelenting rise of fake news and malicious gossip on the internet. No one was injured when 28-year-old Edgar Maddison Welch strode into the Comet Ping Pong restaurant, packed with families on a Sunday afternoon, and fired off a round from his AR-15.
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