The U.S. Secret Service shot and killed 21-year-old Austin Tucker Martin from North Carolina after he breached the security perimeter at Donald Trump's Mar-a-Lago estate in Florida. Martin, who had been reported missing by his family, drove through a gate carrying a shotgun and jerry can of fuel, and raised the weapon at authorities before being fatally shot. Donald Trump was at the White House at the time of the incident, and investigators are searching for a motive while examining Martin's background.

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