If even a person is walking down the street with a machetty, they should be stopped and questioned by police.
https://abcnews.go.com/US/shane-devon-tamura-suspect-midtown-manhattan-shooting/story?id=124159125
However, if anyone is walking down the street with a long gun, police should immediately confront the person.
Somehow, this guy was able to walk down the street and right into the building without being noticed, until it was too late.
https://en.wikipedia.org/wiki/345_Park_Avenue It shouldn't be so easy for an armed person to just walk into such a building.
https://www.cbsnews.com/newyork/news/nypd-officer-shot
https://nypost.com/tag/midtown-nyc-shooting-2025
https://en.wikipedia.org/wiki/345_Park_Avenue , https://en.wikipedia.org/wiki/2025_New_York_City_shooting
https://thedigitallabyrinth.blogspot.com/search?q=NYC+mass+shooter+Shane+Tamura