Not that I have followed the case that closely, but the woman just convicted and sentenced to 18 months in prison was the armorer on the set, the professional employed to be responsible for the weapons and their safe use.

Live rounds were found mixed with dummy rounds. (Early reports, not sure if they were accurate, even had people on the set plinking with live ammo.) A juror in the CNN link above says that she, the armorer, did not even check the ammo to ensure its safety.

A woman is dead as a result.

Eighteen months sounds like a pretty light sentence to me.

Hopefully everyone on this forum knows that the individual holding the gun is ultimately responsible for its safe use. We all know this as gun enthusiasts.

Still, would any of us consider ourselves not responsible if a house guest accessed a loaded gun of ours that we'd left accessible and out of ignorance or carelessness (or malice, for that matter) shot to death another guest?

I think not.