Austin Tucker Martin, 21, was killed by Secret Service after entering Trump’s Florida resort with a shotgun on Sunday

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The 21-year-old man who was shot and killed after having entered Donald Trump’s Florida resort on Sunday – while carrying a shotgun – came from a North Carolina family of the president’s supporters and had reportedly become increasingly fixated on the so-called Jeffrey Epstein files.

The focus of the FBI’s investigation into the intrusion attributed to Austin Tucker Martin is tightening on his movements and motives. Martin was confronted by Secret Service agents and a local sheriff’s deputy inside the secure perimeter of Mar-a-Lago and killed after he had raised a shotgun into the shooting position at about 1.30am on Sunday, law enforcement said.