This is a procedural question about the FBI. A woman from a wealthy and politically connected family goes missing, and due to the circumstances, the FBI opens an investigation.

Who is the family's main contact at the FBI? Would it be the Special Agent in charge of the local FBI office, and would he take their calls personally? After the FBI decides that the woman left on her own, and that there is no missing person, but the family still wants answers, what then? Who ends up becoming their contact person at the FBI, the one who has to take their phone calls?

Thanks in advance.