It is well to remember that in the biggest mass murder in American history no guns were used, only box cutter knives and Mace.

no guns were used
is Mise,
The question is one of Nationality; the atrocity you refer to wasn't committed by Americans !
That's what I put to SteeleRedux who chose not to answer.

By some strange quirk of the internet or perhaps their.news reporting sources missed it the ABC and also the Greens and GCA failed to report this disturbing incident when a lawfully armed civilian stopped a possible mass murder.
Might have been an oversight.

Seems that a convicted felon got a bit upset because he got ticked off for driving fast where there were children playing, he came back armed and opened fire but a woman shot him and he.died from multiple gunshot wounds.
Note that no bystanders were hit, no reports of near misses by poorly aimed shots and the woman didn’t have a law enforcement or service background, apparently just an ordinary civilian.

https://www.carolinacoastonline.com/national/article_07ed7b4e-df96-11ec-a66c-43cf74779b12.html

https://www.gunsamerica.com/digest/good-gal-with-gun-stops-active-shooter-fatally-shoots-convicted-felon-with-ar/?utm_source=email&utm_medium=20220603_FridayDigest_385&utm_campaign=/digest/good-gal-with-gun-stops-active-shooter-fatally-shoots-convicted-felon-with-ar/

See if this works

With all this brouhaha over Americans having guns, it's part of their culture and naturally, accidents and other fatalities can happen, just as much as they can with M/Vs. I'm not sure of the statistics, but I believe more people are injured or killed in M/V accidents or crimes. So should we ban the car? No we ban the driver. Similar principle with guns; if an individual is found not to be a fit and proper person to be in possession of a F/A then he doesn't get a licence.

It's the individual who operates the gun who kills, not the gun. The gun is merely an inert piece of machinery, requiring a person to operate it. There are all many of implements, apparatus, and technology, if used carelessly or incorrectly, are quite capable of causing serious injury or death.

A firearm is no different. There are many safety features associated with the use of a F/A in this country, that reduces the chance of accidents, or deliberate misadventure. I see no valid reason for a general prohibition on firearms. All reasonable measures have been taken.

The F/A tragedies in the US are wholly lamentable, no doubt about that. A similar thing happened in Bourke Street Melbourne when a deranged driver deliberately drove his M/V into a crowd of shoppers. So should we ban M/Vs as the same logic applies to F/S

For sme reason the hyperlink isn’t working.