defend himself ask also help everybody else. >> reporter: in order to do that, not only does he need to carry his medical equipment but he has to carry a gun, as well. a gun much like the one used by the shooters. >> well, you know, i don't want to get hurt. if somebody really have an intention like that yesterday where he was coming and shooting everybody and i'm the first one that gets there as active shooter responds, i want to defend myself and civilians down there. >> ready? >> ready, sir. >> reporter: that's dr. neiki on the right. one day after the shooting, we followed dr. neeki to this shooting facility. >> ready? >> ready sir. >> reporter: and this is another part of being a brand-new sort of doctor, going through training like this with other members of the swat team to try to make sure that he can defend himself in situations where he's taking care of other patients. >> we're now going to this