Biography
Gregory Vandenberg is a former U.S. Navy SEAL who was arrested while traveling toward the June 2025 No Kings protest in San Diego. Prosecutors said he bought mortar fireworks and firecrackers in New Mexico and intended to use them against police at the demonstration. A federal jury convicted him in January 2026 of transporting explosives with intent to kill, injure, or intimidate and attempting to transport prohibited fireworks into California. He was sentenced to sixteen months in federal prison.
