Private? Kalitta? I've seen a few odd aircraft in Kalitta colors over the last couple of years - they seem to pick up/fly the aircraft everyone else gives up on - 727, DC-9.
Kalitta Charter division is among the top remaining 727 fleets and
Kalitta Charters is now the sole company that has a contract with the US government to fly the remains of soldiers to their final resting places.
Headed to Arlington?
-source: Wikipedia