[GingisK]

Blanks can certainly kill, but the wadding won't go through one person and injure another. Unless, perhaps it was something like .30-06 at point blank range.

The real question would have to be, why was live ammunition on the set? I'd suspect old hot-head Baldwin had a score to settle with those two people and hopes nobody can prove it wasn't an accident.

I know that guys in Ranger School will take a deer with a section of cleaning rod using their issued blanks.

[SoCal Pubbie]

There are reports that the crew was target shooting with the gun (or guns) a few days before. If true the armorer, if he or she knew, is going to jail.