Guns - made only to kill.
You seem to be implying that they're made only to kill people, which they are not.
Ignoring the purely target shooting aspect, both knives and guns are tools. Dangerous tools that should be treated with respect. Same with vehicles, which kill about the same number of people each year as guns. Are cars made to kill at all? No, and yet they do. Why? Misuse.
The focus on guns is pointless when they problem obviously isn't the guns themselves. It's who has access to them, what is done about people who have behavioural problems, and what causes those behavioural problems.
Now, as I've said several times - nothing is going to remove guns from society. So magic-wand solutions are meaningless posturing and nothing more.
We'd be better focusing on practical solutions that can actually be enacted.
Looking at the over-prescribing of drugs to children and attaching some liability for that might have a bigger impact than banning guns.
Having offenders actually handled rather than getting off and escalating their behaviour would be sensible, surely?
What about the government intervention that encourages fatherless children, a major factor in most mass-shooters lives?
Most of these shootings turn out to be foreseeable and preventable, but nothing could be done for whatever reason. Let's look at those reasons and remove the blockers.
In this case, we need to look closely at the police and why they didn't shoot. Is this a consequence of the criminalization of policing?