Very topical. Agneta used to have a pretty persistent stalker. I believe she eventually married him for a while. Pretty sad story but no stabbing involved.
Sure there is. In Sweden, no one locks their doors at night. They don't lock their cars, even in the densest cities. It's well known that in Sweden, the only significant category of crime is petty theft, most often pickpocketing, where the thief will remove a small "finder's fee" and return the rest of the wallet, contents intact. (https://www.brookings.edu/research/the-rise-of-sweden-democr...)
I live in Rural TN and we too neglect to lock our doors (and our cars, I might add). In fact, my in-laws leave the keys to their cars IN THE CAR, and unlocked.
I'd argue this has a lot more to do with high trust local communities, rather than high trust "societies". Maybe I'm nitpicking, but the implication seems to be that somehow "American society" (whatever that means) is inherently low-trust. But the fact is America is so diverse, trying to create a useful comparative analysis there is difficult.