Red Cap: Long Time Dead

Drama series about a specialist military police team based in Germany. When a drunken private crashes his Armoured Personnel Carrier into a disused building, a mummified corpse is dislodged from a roof cavity. Forensic evidence taken from the body reveals he was killed by a massive blow to the head some nine months earlier, and he was a soldier. But who was he? How did he die and how did his body remain undiscovered for so long?