Wadie Haddad
Because airport security was focused on the possibility of a Palestinian attack, the use of Japanese attackers took the guards by surprise. The attack has often been described as a suicide mission, but it has also been asserted that it was the outcome of an unpublicized larger operation that went awry. The three perpetrators—Kōzō Okamoto, Tsuyoshi Okudaira, and Yasuyuki Yasuda—had been trained in Baalbek, Lebanon; the actual planning was handled by Wadie Haddad (a.k.a. Abu Hani), head of PFLP External Operations, with some input from Okamoto. In the immediate aftermath, "Der Spiegel" speculated that funding had been provided by some of the $5 million ransom paid by the West German government in exchange for the hostages of hijacked Lufthansa Flight 649 in February 1972.