Interesting. The National Zoo in DC is free every day and I can’t remember the last group violence incident.
Be patient, it’s soon summer . . .
I’m not an expert on DC, but on my visit there in 2012 it seemed like there was an LEO of some type on pretty much every corner.
When I watched a group of youts stage a flash mob and strip a beverage truck clean in about 30 seconds, it seemed like in 30 more seconds there were about 50 LEOs on the scene.
Maybe the zoo had an “intimidating” LEO presence.