movie theater. >> he had gone to the movie with some friends for their midnight showing that they always did. and 3:00 in the morning, i got a knock on my door and it was a couple of friends of theirs. i was like, where's a.j.? it's not something you ever want to go through. i just thought if i prayed enough, he would be okay. and he wasn't. but that's why i'm here. it is easy to just kind of move on if it hasn't affected your life. but that's why i'm here, is to make a difference. and don't let people forget how important it is. >> we're going to do our first interview, okay? >> teresa is here with her brother dave, a policeman, a republican, and a gun owner. >> these mass murders, on average, we've had four a year