Wanna bet?
Yeah, it may be days before they put out an official name. Time for Fakebook and other social media sites to be taken down and scrubbed. Names will probably leak out before because LE will interrogate neighbors and co-workers. Someone will put two and two together and come forward with a name or two.
The feds won't be able to keep the names secret very long, but they sure will try.
Unless they are from out of town.