cnn national security analyst and msu professor shaun turner is standing by for us in east lansing. first, senior crime and justice correspondent shipone prokupecz has more details on the gunman from his own father. shimon. >> yeah, so part of what law enforcement has been doing is trying to figure out what was going on in this gunman's life. so they have talked to the father. they have talked to friends, they have talked to the sister. we here at cnn have talked to his father as well. and certainly, the dad is painting a picture of someone who was very troubled. and he points to the fact that his mother died just about two years ago, and that since then, the gunman has not been the same. but this doesn't really give any more clarity as to the motive here. let me tell you what the dad has been telling reporters and certainly law enforcement. he describes that his son at some point became isolated and evil and angry. and that he was getting more bitter. angry and bitter and that he let himself go, and sort of indications of that was his son stopped cutting his hair, stopped taking ca

back with me, shimon prokupecz and, jake i'm, shaun turner who happen to be on campus when the alert john miller also joining us. okay, shimon, what is the latest reporting? >> i want to go back to the photo that we showed of the suspect. obviously that, is the key thing. to try to find this guy in the shoes in jean-jacques it and the baseball cap. what i think is interesting here is that it appears he's walking into this building here. so, we don't know what building this is. we don't know if this is berkey hall or union, the other building where this second incident occurred. the questions are going to be raised about how he got inside of that building. obviously that's something that i wanted to flag. it appears he is walking in. i don't know where he goes from. here we don't have the luxury of asking the police right now. they say that his last known location was leaving that mou union hall. obviously, from what i'm hearing from friends who attended the school, the way this area, as he could be anywhere. we are talking about a very large area, a wooded area. there's a large commu