On Sunday night, a shooter opened fire on concertgoers 32 floors below a Mandalay Bay Resort hotel room in Las Vegas. Authorities say Stephen Paddock killed more than 50 and injuring hundreds.

Within hours, Internet trolls and pranksters began churning out hoaxes, misinformation and lame jokes aimed at misleading the public, promoting their own platforms and laughing in the wake of tragedy.

Many of them worked, garnering hundreds of reposts on social media from possibly duped users. It all highlighted a gullibility and lack of judgement too common online: Social media users are far too trusting of random accounts that filter into their feeds.

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