I had been on the job as a special agent for four years when, in 1989, the chairman of Germany's Deutsche Bank was assassinated in a plot so sophisticated that the case remains unsolved to this day. Alfred Herrhausen was riding in an armored Mercedes limousine when an explosion ripped through the vehicle's plating, destroying its passenger side. The bomb, it turns out, had been hidden in a bicycle on the side of the road and synced to detonate precisely as the three-vehicle motorcade passed.
Authorities suspected that a German terrorist group called the Red Army Faction (RAF) was behind the attack. And like many –- even most -- terrorist groups, the RAF eventually faded from prominence in the world of international crime. But what of its members? No one was ever charged with Herrhausen's murder. The operatives who planned and executed that attack, among so many others, remain at large....