People will always find a way. Immigrants in Germany and all over the UK are killing people almost daily. Just yesterday I saw one where there was an argument from roommates, the Syrian guy took a huge sword (like the style you see in the movie Aladdin) stabbed the roommate multiple times in the street then hacked his arm off and fled.
Knife attacks are up in huge numbers there.
Or people getting pushed in front of trains.

It’s the mental state of people who somehow think this stuff is ok or justified