Explosives have gone missing from the largest Marines training base in the U.S. at around the same time the military is being investigated for right-wing extremists and white supremacists in its ranks.
The FBI confirmed Booker had a package addressed to him.
Daniel and Caleb Tate, 22, of Cochranville Township, Pennsylvania, were arrested and charged with arson by explosion, arson by possession of explosive devices, conspiracy, theft, and other offenses.