- Sean Steiner, 36, was arrested near the Trump National Golf Club Los Angeles in Rancho Palos Verdes after being seen running through traffic.
- He was armed with a semi-automatic short-barreled rifle, painted with "Joker-style" phrases like "why so serious?" and "let's put a smile on that face."
- Deputies recovered the loaded rifle, two loaded handguns, high-capacity magazines, and a ballistic vest from Steiner.
- Steiner admitted to firing one of the pistols in the area to "get some anger out" and had been seen hiking in body armor with a rifle.
- He has been booked on multiple felony firearm charges following the incident.
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