The shooting has caused shock waves in Montenegro, a small Balkan country on the Adriatic Sea, home to some 620,000 people, that has long had a strong gun culture but relatively few mass shootings.

Students recalled texting their parents during the Apalachee High School shooting in Georgia as classmate Colt Gray killed four people on Wednesday. The shooting occurred at around 3 a.m. on ...

The Post defines a mass killing with a gun as a shooting in which at least four people are killed, not counting the shooter. The median age of shooters and suspected shooters is 31, but the range ...