When FBI agents investigating the January 6, 2021, attack on the US Capitol searched the Florida property of Jeremy Brown, they found a small arsenal. An AR-15-style rifle and a sawed-off shotgun, both unregistered, and two fragmentation grenades turned up in the search, prosecutors said. The Justice Department later alleged that Brown—an Army special forces veteran and member of the far-right Oath Keepers militia—had driven to Washington with those grenades and other weapons as part of the Oath Keepers’ preparations for violence aimed at helping Donald Trump retain power. In 2023, a federal judge in Florida sentenced Brown to more than seven years in prison on weapons charges.