evidence: "Explosive revelation: Jonathan Willis, the officer in this photo from Trump’s rally, claims he had the shooter in his sights for 3 minutes but was ordered not to take the shot by top Secret Service brass," one July 14 Instagram post read. "Massive if true, but take comments on the internet with a grain of salt." [...] We traced the social media claims to 4chan, an anonymous online messaging board. At around 2 a.m. July 14, someone with the user ID "z9qiQ4hq" claimed on the site to be "Jonathan Willis," 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." [...] We rate the claim that someone named "Jonathan Willis" was told by Secret Service higher-ups not to engage the Trump rally shooter False.