The justice department is investigating whether or not TRayvon's rights were violated by GZ. I believe there is a case to be made that can show they were indeed violated. TM had a right to be where he was. He was not doing anything wrong. He was as far as we know unjustly followed. Anyway, you guys are smarter than me. Is there a case for civil rights violations?
You need a state actor to violate the civil rights. That's why the Rodney King incident had a civil rights case, because cops were acting on behalf of the state. GZ wasn't acting on behalf of the state.