congressman dunkin' said there were republicans, and then he immediately turned around and went towards the field. >> we were sitting ducks. >> i see a rifle. and i see a little bit of a body and i hear another blam and i realize there's an active shooter. >> is that guy okay out there? >> i watch my friend steve scalise lay motionless on the field. >> the gun was a semi automatic. it continued to fire at different people. you can imagine the people on the field scattered. >> zach barth who works for me was shot and zach had come running in from the outfield, and he literally -- we landed in each other's arms. he held me. i held him. >> i took off my belt, myself and another congressman applied a tourniquet to try to slow down the bleeding.