Terrible tragedy, no words can/could ease the parents suffering, nor the loved ones of those who were killed. I won't even try.
EnglishRosey: the primary function of a gun is to kill.
In a sense yes, but many of us have giving up hunting (no time), but love sport shooting still.
It may be difficult to those who have not grown up around firearms to understand.
Regardless, if all guns were outlawed, only outlaws would would have guns...yes, honest individuals would turn theirs in, but dishonest people would not. We'd all be "fish in a barrel".
There's just too many guns in circulation within the US...it would take 500 years to make a dent in ferreting them out.