deal with those and it is a real challenge to keep track of all those prescriptions, make sure there s no interactions, that s just fact. that is an issue the military is dealing with very significantly across the board. so i think there s good reason to believe we know they re going to look at his medical history, his prescription medication certainly will be part of that investigation, wolf. barbara, thanks very much. barbara starr at the pentagon. we have more now on the ft. hood shooting investigation. let s go to our justice correspondent pamela brown. she s joining us from ft. hood, texas. what are you learning over there, pamela? well, wolf, we re learning that investigators are right now in this moment looking at lopez s laptops, his cell phones, interviewing witnesses, trying to figure out and piece together why he did this, why he opened fire on his fellow soldiers. we can tell you according to sources and from general milley who spoke here earlier today, the general of f