not getting paid. investigators are also trying to figure out how he got into the heavily fortified navy yard. he didn t work there. he wasn t a contractor there. 3,000 people work at the oldest naval facility in the country. we have chris lawrence, tom foreman and dana bash standing by. but first, jessica, walk us through how this happened. reporter: a massacre at one of the most secure facilities in this town, just blocks from the nation s capitol has people across washington asking how could this have happened? chaos and confusion across the nation s capitol. 8:15. an emergency call reaches washington police. word of a shooter at the navy yard. within literally two to three minutes, metropolitan police officers were on the scene. internal security had already