So another problems appears brightly:
Bureaucracies exist to perpetuate themselves not to solve problems.
Why didn't the FBI copy / contact a local sheriff or the local PD to have them check on the kid, or even their own records?
Policing at its best is a local function, and the FBI should be restricted to national or inter-state issues.
Does the FBI understand that the CC: field can be used?
Or is that violating some obscure rule?