It is sad that it has to be explained.  But the gun laws in the USA are there so that if they try in the US what is being tried in other countries acrosds the world it will be much harder to do.

The news will most likely not report it, but the shooter in Chicago was an antifa type masquerading as a "Trumper".  Why is this happening, you might ask?

We are in a war.  A new sort of war.