. >> we now want to bring in sean keenan.s a freelance journalist for the new york times who interviewed the suspect for his college newspaper in 2015. i want to thank you for joining us. and can you just let us in on what the circumstances were? i know this was nearly a decade ago now, but you didn't meet him. what were you interviewing him about and what was he like? >> yeah. >> um, thank you for having me, paula. >> uh, i mean, this began like any other story, which was just, you know, somebody whispers in my ear, i'm having difficulty navigating, you know, whatever government system of maybe in this case, it was students reaching out saying, we're having trouble getting our veterans affairs benefits that we are owed through the gi bill. and admittedly, you know, ten years later, i don't fully remember how i got connected to shamsud-din jabbar. i believe it may have been through the georgia state's student government association. um, but we just discussed what it was like for him acclimating to civilian life and to college

sean keenan was a student journalist in 2015 when jabbar attended georgia state university. he interviewed jabbar about the struggles of returning to civilian life after the military. >> i remember a very calm, collected guy, you know, certainly no red flags. he did come across as a leader and a helper. and exactly what went wrong after that. uh, remains mysterious to me. >> this is the home in north houston where shamsud-din jabbar lived. a neighbor tells us that he was here for just about a year and a half. the aftermath of how investigators knocked down the door and fenced to access jabbar house was visible from the neighbor's yard. a neighbor tells us that he last saw jabbar on new year's eve morning. he was out front loading up a white truck. jabbar told him that he had found a new job in louisiana and he was moving there. >> the morning he was moving, i asked him if any hands for moving help help him out. as a neighbor, do you need any help for moving things around? he said, i'm okay. >> mumtaz bashir lived next door to jabbar and he said they only spoke briefly on tue