So, help me out here. Is the current situation, because it is a constitutional right, that just anybody (in America) can own a gun? Even if you have a previous history of gun-abuse?
Nope. There are actually a whole helluva lot of restrictions on weapons sales, ownership, & use over here, although the details vary state by state.
Federally/ NationWide : No felon*, or DV conviction, or anyone indicted/charged with either a felony or domestic violence (until they're found guilty/innocent)... Nor anyone with an active domestic violence protection order against them, nor anyone under the influence of or addicted to an illegal substance. These groups are not even allowed to possess a firearm, much less use, or buy one legally. There are also a whole lot of laws about which weapons types are legal to possess.
* Any US Military crime that goes to court martial "counts" as a felony, even if it is a misdemeanor offense outside of the military. Ditto, a bad conduct discharge also always counts as a felony.
State : The variances here are huge. States are allowed to make laws more restrictive (not less). My own state is pretty liberal, but includes things such as : No one who is being prescribed a psychiatric medication, several weeks waiting period between purchase of & take-home of pistols & short barreled long guns, anyone who has ever been charged with DV or has had a DVPO filed against them (not just convicted or an active DV protection order), or has had a DUI (drunk driving) conviction, anyone ever convicted of a firearms charge, amongst others. Then it is also illegal to discharge weapons within any urban area except at a licensed range (including in self defense, although if you're proved justified AND didn't hurt anyone else, they usually don't level those charges on you), any kind of armor piercing (aka sharpened) round is illegal, certain frangible rounds are illegal, no fully automatic rifles (semi-auto is fine... But that's still single shot).... The lists go on. And, again, my state is really liberal.
Thank gawd my state is one that allows suppressers, however. I like my ears, first and foremost. But in addition to that suppressed rounds travel at greatly reduced speeds. Which means they're highly unlikely to pass through walls. Hell, after a certain distance (not far, forget the number, need coffee) a leather jacket is sufficient to stop a suppressed pistol round. People think they're all badass because of movies, which cracks me up.
ETA... I just woke up, will pull up stats if I goofed the link after coffee if I misposted. Although it's important to know the 300k+ firearms charges in the US are similar. The vast majority of them stem from people breaking firearms laws, or using / found in possession of them in commission of another crime (burglary, rape, drug sales, etc.), not actually shooting people with them.