Who is the arrested armed person outside of Trump rally?

Social media belonging to a Vem Miller of Las Vegas shows as man posing for selfies with MAGA and conservative figures including Steve Bannon, Steven Miller, Russell Brand, Robert F Kennedy Jr and Newt Gingrich. A self-filmed video shows the same man at the Republican National Convention, describing “good people, good times”, and coming close to Donald Trump Jr as he walks past.

https://www.the-independent.com/news/world/americas/us-politics/trump-assassination-attempt-coachella-rally-b2628575.html