Experts question whether he should have been carrying a submachine gun . Charles Vacca died Monday morning after he was accidentally shot in the head . Police said he was showing a 9-year - old girl how to shoot an Uzi . The unexpected with firearms is something that 's only learned through years of being a trainer , not a gun enthusiast . '' He was a military veteran , CNN also reported .
Experts question whether he should have been carrying a submachine gun . Charles Vacca died Monday morning after he was accidentally shot in the head . Police said he was showing a 9-year - old girl how to shoot an Uzi . He was a military veteran , CNN also reported .