. >> jeff pelle. something i wanted to do since i was little. >> dave barb. i first got into law enforcement through the military police. i was 19 and i thought it was a good idea. >> their graveyard shift started on december 30th. it was a quiet night. >> i was looking forward to getting in there, getting it done. >> it was a slow night, too, up to about 3:00 a.m. >> what's going on? >> this guy totally freaked out on me. he kept come at me. i feared for my health. >> and what was your name? >> matthew. >> there was a hazard hit saying that he was a veteran with ptsd and possible access to weapons. >> so that's all you know at this point. >> yeah, pretty much. >> ok. >> lay, how are you? >> good. >> what's going on? >> my roommate freaked out on me. i put a laser in his face and i was like -- >> ok. >> when i got on scene, zach and the other -- the officer on scene was talking to matthew riehl. it was fairly calm at that point. >> why don't you come out? you mind if i come in and talk to you, sir? is he on anything? does he have any mental disabilities? >> n