Report says DC officers couldn't watch Navy Yard surveillance video during response

(AP) — An internal District of Columbia police report on the response to the Washington Navy Yard shooting says officers were hindered because they couldn't access live surveillance-camera footage of the shooter.

Military contractor Aaron Alexis killed 12 civilian workers at the Navy Yard's Building 197 in September 2013 before he was fatally shot by police. The Metropolitan Police Department released its 83-page After Action Report on the shooting Friday.

The report says the contract security guard who was monitoring the surveillance videos locked the door to the control room and didn't contact law enforcement. That prevented police from tracking Alexis' movements in real time or ruling out reports of a second shooter.