Recruiting center bombing: Bomb found in suspect's home has unusual features, FBI says
By: The Associated Press, July 19, 2017
TULSA, Okla. — A preliminary FBI investigation has determined that an explosive found in the Oklahoma apartment of a man accused of setting off a pipe bomb near a military recruiting office had unusual features usually seen outside the U.S.
The Tulsa World reports that court documents show the FBI determined that one of two pipe bombs found in 28-year-old Benjamin Roden's apartment in Tulsa utilized two 9-volt batteries and magnets.
https://www.airforcetimes.com/articles/recruiting-center-air-force-bomb
