Good grief, you mean not one of those people had a gun?
Two police officers probably did. They were probably there for security because of death threats. You can see a video of one begging for his life as he’s executed. Ironic?
Cops might have been armed, depending on the branch they were in. They would, however, probably have been seriously outgunned.
It’s Paris.
Even the German Shepherds “guarding” the Louvre have muzzles.