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 .
Experts question whether girl should have been handling a submachine gun . Charles Vacca died Monday night after he was accidentally shot in the head . Police said he was showing a 9-year-old girl how to shoot an Uzi . Vacca was a military veteran , CNN affiliate reports .