1) People are saying that Scott had a long criminal history, This is not true I pulled up his entire criminal record and he has one arrest & conviction of worthless check a decade ago .
2) NC is an open carry state if he was holding a pistol and not acting in a threatening manner he was totally legal and was not obligated to drop his weapon upon command .
3) The first 2 or three Officers on scene who were there for a totally unrelated warrant service arrived in unmarked vehicles, It is likely that Mr Scott in his TBI state thought he was being robbed  and had every right to arm himself in self protection again if he indeed had a gun ?, I personally don't believe he did, His wife said on scene that he didn't and I don't believe that she would have allowed him with a TBI to keep a gun handy because of fear of accidental shooting or suicide.