There's a massive behavioural and cultural issue that's embedded in the 2nd Amendment in my opinion.
The US tops it's peers in gun crime (by some margin). The US tops it's peers in incarceration rate (by a huge margin). No amount of suggestion by anyone outside the US (or even those in the US against such gun freedoms) will ever be listened to. If it wasn't so tragic it would be funny.
Aside from the guns, some of the reasons the incarceration level is so high here might be:
- Multiple, often contradictory layers of laws at the local, state, and federal levels that can vary greatly between states. Even within the state level, laws often contradict each other. New legislation is often passed without review of existing statutes.
- Punishments not fitting crime: having a couple grams of weed can send you to jail. My Danish friend who has also lived in the US said Danish law is almost a slap on the wrist by comparison.
- Politics: looking tough on crime, despite the severity of said crimes, gets votes in this nation.
- 17 is considered adulthood at the state level: this creates a somewhat wider sample size of those who are probably more impulsive than your older adult population on average. The only country I can think of that did this was NZ, but they changed it to 18 a while back. I'm talking *all* crimes here, not committing a race-driven massacre.
Going back to this massacre, here is what I predict will happen based on my spiel above:
1) Bills are introduced at the federal level to strengthen the background check process, including prevention of someone previously taken into custody for making threats at any age from buying assault weapons in another state.
2) GOP Congresspeople shoot down said bills and repeat the same states' rights crap.
3) GOPers at the state level use this terrorist attack to push legislation to send more juveniles to adult jail, like Louisiana is currently trying to do with all 17 year olds, including misdemeanors. Many NE white wealthier Democrats support these measures, like they did in the 90s. Filling the adult jails with people too young to hire his/her own lawyer cranks up approval ratings from the "tough on crime" perspective, while avoiding the tough subjects (racism, gun access to nutjobs...).
4) Right-wingers continue to deflect blame for their racist lies, and will go back to fighting non-whitewashed versions of US history in public schools when it comes to race.
5) Media and country largely forget it in a month outside of Buffalo.
To summarize, nothing will be done to prevent sonething like this happening again. There may however be collateral damage outside of Buffalo (17 year old black Louisiana boys being more harshly charged with misdemeanors, for example).