fox news channel, through the facilities of kdfw, fox 4 here in dallas, and veteran police officer sean rabb, who had the first video of the shooting of a police officer and shared with his viewers and his friends on the force the grave news that all texans know today. sean, it's an honor to have you. i watched in awe and horror as you and your colleagues were reporting this. as it was coming together, did you have a sense of how big this was? >> immediately my sources started contacting me. and was two officers. and then calling into the station, i was having dinner when this began to break. suddenly i'm told, hey, it's multiple officers. i knew it was going to be big, quickly learned between three and six officers were wounded, we thought. and it wasn't until after i had gotten back to on air that i started learning five are gravely ill. and we began to get the final calls. and it was incredible, unbelievable. no one thought we would have that many officers die in downtown dallas last night. >> as it was happening, we watched from our studio in new york, our viewers watched from their home