Although some states have child-access prevention laws that penalize gun owners who don't keep guns away from children, Ohio has no such law.

WSJ: Third Student Dies in Ohio School Shooting

Because many states don't require guns to be registered, or private sales to be documented, no one really knows who owns many of the guns in circulation in the United States.

CNN: Why new laws could miss America's bigger gun problem

We always believe we can beat the big guns - there's no point in playing if you don't.

BBC: Sevens Scots head Stateside