Check the nearest mall or movie theater- Guaranteed that’s where they went to “mourn and protest the social injustice”.
Since it's Miami, I'm thinking the beach will probably be deemed the most appropriate venue for a protest.
For those without teen-age kids, here is the new youth anthem, a popular hit on today's top-40 radio (although in a slightly modified version):
Snoop Dogg & Wiz Khalifa - "Young, Wild & Free" (featuring Bruno Mars).