If she couldn't keep them out of his hands, he had access.
My dad had a lot of guns. He kept them under lock and key. He kept the ammo in a place we couldn't find it. And I would imagine if one of us turned out to be crazier than a Fox News Commentator, he'd have taken more measures than that.
And in my household growing up, a 12 guage shotgun was displayed over the mantle and every member of the household knew where the ammo was and how to load it and how to aim and fire it. But the younger kids knew we were not to touch it without permission and we didn't. Almost all of the older boys and a lot of the girls owned their own shotgun or hunting rifle. And in all my growing up years, nobody ever shot anybody in our town--there were a couple of hunting accidents of minor consequence--and nobody was murdered. During hunting season, the boys usually had guns in the the racks in their trucks ready to go hunting as soon as school let out.
The 20-year-old son was hardly a kid though. He could have already served two years in the military where everybody carried guns.
Different times. Different culture. In today's culture there is far more evil, violence, and insane behavior. Yes keep the guns out of the hands of kids now. But lets give the teachers the means to protect them from the crazies.