Well, both of the previous answers prove my point

US is a a dangerous country and the police is not doing a good job at all

If there are so many homicides, who should prevent them?

If after killing a hundred people a month (by shooting at them, I presented only the numbers of those killed by a police shooting) they can't even make a dent on the (horrible) numbers, it means they are doing a very bad job.

Tertium non datur

The mob kills less people here.

And we have at least two of the main five criminal organizations in the entire world.