Re: nothing can eclipse the constitution. Nothing.
Absolutely no shooters in the US have used assault rifles - those are fully automatic military weapons that have been illegal (without a class III federal license) for decades. The shooters have used so-called "assault weapons" which are nothing more than semi-auto hunting rifles that look like assault rifles. I have no issue with effective gun control but I haven't seen any such thing in at least 20 years proposed in the US. Outlawing "assault weapons" does absolutely nothing without outlawing other rifles with the same characteristics (primarily other semi-auto rifles with the same magazine capacity). It's similar to the law that went through after the Las Vegas shooting - it outlawed bump stocks but did nothing for the other 2-4 devices that do the same thing.