Washington Navy Yard gunman Aaron Alexis tried to buy an assault rifle at a Virginia gun store but was refused, CBS reported Wednesday.
The store wouldn't sell him an AR-15 after he test-fired it, but the reason for the refusal was unclear, CBS said. Alexis was able to buy a shotgun at the store. The weapon is believed to be the same one used in the shooting.
As Washington police dealt with the situation at the Navy Yard, the men in charge of security on Capitol Hill reacted differently about how protect members of the House and Senate and their staffs, Roll Call reported.
Terrance Gainer, the Senate's sergeant-at-arms, locked down his half of the Capitol and Senate offices. House Sergeant-at-Arms Paul Irving did not.
About an hour after the shooting at the Navy Yard began, Gainer sent a Twitter message saying there was "no known direct threat" to the Capitol, but Capitol police were "taking extra precautions."