washington navy yards and for the men and women who helped rescue those trapped inside, it was a mission like any other. this is the modern day version of slaying dragons and rescuing damsels. i m a pilot sergeant with the united states park police and i m a helicopter pilot. this unit flies an average of 1100 hours a year. about 200 search and rescue missions 45 law enforcement and between 150 and 450 medevacs a year. the united states park police is sort of the urban law enforcement arm of the national park service. we do hoist rescue, med vacs, we search for snipers. but at navy yard we had to do all of those things at once. this is cnn breaking news. we re learning of a shooting at the navy yard in washington d.c. we know several shots fired. we know people injured. that morning i was the day work pilot.