CNN CNN Newsroom Live July 18, 2015 08:37:00
Now at the psychology of how and why killers or terrorists act the way they do. eric fisher is a licensed psychologist here in atlanta. thank you so much for coming in eric to talk to us about this. because we just heard that his friends in high school just can't believe, something happened since high school when he was described as funny, smart, very well liked, never bullied. and to look at that picture of him, he just had a demeanor that said he just he was happy. >> right. >> so but something happened. and we also know that he did travel to the middle east. so there was a trigger point som...