revealed something pretty surprising about the shooter. >> he told us he was depressed. we knew he was depressed. >> when you say he was quirky, just give us a sense of what that looked like. >> he was just -- he was just trying to fit in. he was just -- didn't know what to say or when to say it or how to stay it so he'd ask a lot of questions. he'd apologize a lot. if we told him to do something, if he needed to clean up after himself, he'd apologize and say he was sorry. you don't have to be sorry, just do it. >> i want to bring in paula mcmahon who had the first interview with this couple and wrote about it. paula, i read your piece over the weekend and your headline is we had this monster living under our roof and we didn't know. i mean the question is how did they not know, because there seemed to be so many other signs. they acknowledged that he was depressed after his mom died. what did they say to you? >> what james and kimberly snead