evidence: Posts from the anonymous online forum 4Chan have been spreading the false claim that Secret Service officials prevented an agent named "Jonathan Willis" from shooting former President Donald Trump’s attempted assassin. The Secret Service has no employee by that name, and the claim is "categorically false," the agency said. Nobody by the name of Jonathan Willis is employed by the U.S. Secret Service, agency spokesman Nate Herring told us via email. [...] It said, "My name is Jonathan Willis, I’m the officer in the famous photo of the two snipers on the roof at Trump’s rally. I came here to inform the public that I had the assassin in my sights for at least 3 minutes, but the head of the secret service refused to give the order to take out the perp. 100% the top brass prevented me from killing the assassin before he took the shots at president Trump."