honolulu, police, department, held, drill, yesterday, mckinley, high, school, where, officers, had, to, engage, eliminate, threat, from, mock, gunman, fires, during, shooting, hpd, train, allowing, them, minimize, damage, done, by, shooter, firefighters, moved, in, treat, victims, after, secured, grounds, eliminated, respond, hfd, crews, attend, victim, exercise