I'm STILL not going to sit there and let someone kill people.
Running deliberately to the sound of the guns without help can get you dead as well as the people that you attempted to help. You can save more people by creating and holding a defensible retreat than you can by stepping into a gunfight and getting yourself shot.
My first duty is to myself, then to my family, then to others. Getting home to my family is higher on my list than trying to be a hero.