The FBI has no jurisdiction over local agencies. This is simply a homicide scene, and the City of Orlando or the appropriate County or state officials are in charge, period.
I hope that Donald Trump makes a big deal about this, i.e. shine some light on these cockroaches.
Yes. We have reached the point where, if there is a "celebrity crime" -- ie: a massive crime with big media coverage -- every agency that thinks it can get away with it wants to butt in for the $$$ they can reap from it. This HAS to stop.