rest. this man has a lot to answer for. trace, his background is coming to view. tell us what you can. >> we're still not going to release his name. police have not released it to us. we have scoured his social media footprint. we found on facebook, he left the picture part blank. there was not a lot of information to glean from there. if you look at things like his instagram page, you can see he's fascinated by guns. we don't know the type of weapon, we don't know the power. we know this suspect, if it's him, is fascinated by guns, fascinated by gun groups. he following resistance groups like syrian resistant groups and fighter groups of of iraq. we noticed a couple days ago, maybe a week ago, he was involved in a youtube chat room conversation about bombs or building bombs. because of that, we could hear