The Brief Andrew Arrabaca, 43, set a fire, igniting commercial fireworks, and brandishing pellet guns outside 26 Federal Plaza in Lower Manhattan before federal officers quickly tackled and detained him. Arrabaca, a former U.S. Army Patriot missile mechanic, arrived heavily armed on Monday morning. Federal officials identified Arrabaca as an anti-government extremist opposing federal immigration enforcement who intended to cause harm. The suspect, who was quickly taken into custody by federal security officers, has been identified by authorities as 43-year-old Andrew Arrabaca. ‘Anti-American’What they're saying:Law enforcement officials characterized the suspect as an anti-government extremist driven by opposition to federal immigration enforcement.