From the Washington Times:
On Sept. 8, Mr. Brinkley says he intended to drop his wife and young children at the White House for a tour and then head to a shooting range to practice for the U.S. Marshals Service test. Just like Mr. Gregory, Mr. Brinkley called MPD in advance for guidance on how he could do this legally. Mr. Brinkley was told that the gun had to be unloaded and locked in the trunk, and he couldn’t park the car and walk around.
Unlike Mr. Gregory, Mr. Brinkley followed the police orders by placing his Glock 22 in a box with a big padlock in the trunk of his Dodge Charger. The two ordinary, 15-round magazines were not in the gun, and he did not have any ammunition with him.
As he was dropping off his family at 11 a.m. on the corner of Pennsylvania Avenue, Mr. Brinkley stopped to ask a Secret Service officer whether his wife could take the baby’s car seat into the White House. The officer saw Mr. Brinkley had an empty holster, which kicked off a traffic stop that ended in a search of the Charger’s trunk. Mr. Brinkley was booked on two counts of “high capacity” magazine possession (these are ordinary magazines nearly everywhere else in the country) and one count of possessing an unregistered gun.
Despite the evidence Mr. Brinkley had been legally transporting the gun, his attorney Richard Gardiner said the D.C. Office of the Attorney General “wouldn’t drop it.” This is the same office now showing apparent reluctance to charge Mr. Gregory.