Clearly you didn't take time to read the aforementioned article at all, or you would've seen the graph that puts the USA at roughly a bit more than triple the assault deaths per 100k vs an eyeball average of the other OECD nations (down from maybe 8-9 times as many in the 80s.)

I pulled the above statistic because of the specific context of mass shootings. But hey, at least you got a pithy retort out of it.