CNN Anderson Cooper 360 December 3, 2015 01:11:00
The second shooter's status unknown. we don't know if there is a shi third shooter out there. the fbi that investigated 15 years of shooter attacks in the country, more than 160 attacks, i think, if my memory serves me correct on the fbi report, there has only been maybe two or three that have involved multiple active shooters. >> well, exactly. the fbi and the justice department has been working aggressively to uncover different threads and plots and there was a plot uncovered in the new york, new jersey area over the summer, just before july 4th there was effectively a big roundup of a numbe...