evidence: The posts blamed a "prominent Antifa activist," Mark Violets. Law enforcement had not publicly identified the shooter or released any information about his background as of Saturday evening. [...] The person in the posts is, in fact, Marco Violi, an Italian YouTuber who vlogs about soccer. The lie seemingly began with a joke, first posted on X from the account @Moussolinho, which wrongly pointed to Violi as the shooter. His post included a photo of Violi taken from the account of another user, who often posted videos of Violi. That user, because his page was filled with videos of Violi, led people to swarm his account with accusations that he had tried to assassinate Trump. That user made his account private after people began publicly calling him the shooter. "This is absurd," the user said over DM, declining to give his real name. "I had a photo of Marco and some video on my account, so people started thinking that I was this Mark Violets. But it was all fake news."