Gareth, we get what you are trying to say, but you can't dispute than guns have potential to do more damage than a knife in scenarios like what happened this week.. Hence why most of us believe the US should change the constitution...
OR, as you mention Connecticut, change the laws so it makes it really difficult to get guns (isn't that what we are all saying). Yes they need better support for mental illness but sometimes that person has never seen anyone for help before they head into Asda to buy a gun. Yes its a US mentality, no we can't get rid of all guns tomorrow, but making it harder to get guns (LIKE IN YOUR EXAMPLE) surely makes sense?
Either that, or stop making bullets
Never denied that for a second, but then again bombs can do more damage than guns. Do we then outlaw the components that can be made to make bombs? Do we ban the sale of acids in case the seller thinks you are going to chuck it in somebody's face?
It's up to the USA to change this, not some relative nobodies on Social Media. The buck stops with them and with Donald Trump as POTUS.
Related to what Tallshort has said, I've been on shoots in Welshpool (Clay Pigeon) and thoroughly enjoyed it. If both me and him (I presume Tallshort is male?) can handle a deadly weapon in a safe fashion then we're obviously doing something right.
Why not ask the people who have these guns in the USA why they need them in as great an amount? As a means of defence, I can understand a woman carrying (under Open Carry) a gun in order to prevent her from being raped if she is walking alone late after dark, but to stockpile the amount and types of guns that they do...
Nevertheless, I still maintain that even if guns are banned in the USA, following outcries, that it is only going to lead to further problems down the line. Cartels will sell them illegally, the Dark Web will profit (as it does with other banned products - see Silk Road and others for instance).
More stringent checks and Mental Health profiling before selling a Gun may well be a step in the right direction, and education has a role to play as well.
People who are normal, happy and well-adjusted do not suddenly start shooting other people, there has to be some kind of underlying issue or (pardon the expression) 'trigger point'. Sure, there's plenty of people that I don't like in the world, but I'm not exactly going to send them to meet their maker with an AK-47.
When kids in the USA (as MarkN describes them) are some of the least happy and least optimistic in the West (along with England, weirdly enough) and have to jump through so many hoops in order to be accepted then that needs to be looked at. Going back to Big Pharma, I think it was the BBC's Panorama programme which mentioned that if a 12 year old ever felt sad/lonely/confused that they could be made to take Prozac? We've all been 12 and gone through puberty - highs/lows etc. are commonplace with this biological change. Yet kids are prescribed drugs which can cause them psychological harm just so that Glaxo, Bayer etc. can profit from them.
Depression/Sadness/Anger (Motive) + Weapon (Means) = Tragedy (Result)
Let's not forget that parts of the UK had (and indeed some still have) issues with Gun Crime and shootings and fatalities similarly shocked communities in East London. Intervention, education and programmes designed at encouraging youngsters (some of whom were vulnerable and at risk of joining gangs) away from a life of crime have been a great success here. It gives these youngsters a sense of belonging and purpose, and if they can gain skills to further their lives and careers then it's a major achievement all round.