An Emergency Response Team vehicle arrives to the scene where a gunman was reported at the Washington Navy Yard in Washington, on Monday, Sept. 16, 2013.
A new report says a specially trained tactical Capitol Police squad was recalled from the scene of the Washington Navy Yard rampage in part because of concerns about possible threats to the U.S. Capitol.
That is according to a two-page document released Friday by a panel investigating the police agency's response to the Sept. 16 shooting. The report says the four-person unit wasn't even able to make it to the scene because of traffic.
The investigation was launched days after the shooting amid reports that a Capitol Police supervisor told a tactical response team to stand down rather than respond to the Navy Yard shooting.
The gunman, Aaron Alexis, a former Navy reservist and government contractor, killed 12 people inside the building where he worked before dying in a police shootout.