two were hospitalized with their gunshot wounds and one person described as an older person who what may be a teacher, all of this coming from the arlington police department. i want to bring them now jeff james, retired assistant special agent in charge for the secret service. current chief of police at a university in pennsylvania. joining us by phone. you are with me now. >> i am, harris. >> harris: jeff james, when you work at a university some of them are not much larger than his high school campus because high school campuses across many of our great states including texas are large. talk to me about securing the perimeter and going door to door. >> your emergency management plan has three phases. and it really starts with having the training and the practicing of your students and your staff. so when you are in that moment