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Hans-Joachim Klein is a former member of the German left-wing militant group Revolutionary Cells (RZ).
In 1975 Klein participated in an attack on OPEC headquarters in Vienna organized by Carlos the Jackal, in which he was seriously injured.
He publicly renounced political violence two years later.
After decades in hiding, he was arrested in 1998 and prosecuted for his role in the OPEC attack.
Klein was sentenced to nine years imprisonment and paroled in 2003.
Jessica Yu's documentary explores the relationship between human life and Euripidean dramatic structure by weaving together the stories of four men: German terrorist, a bank robber, an "ex-gay" evangelist, and a martial arts student.
"Operation OPEC - Terror Attack in Vienna" - On December 21, 1975, six terrorists including the Germans Gabriele Tiedemann and Hans-Joachim Klein, led by Venezuelan top terrorist Carlos, attack the participants of the OPEC conference in Vienna and take eleven oil ministers and dozens of employees hostage. The action kills three people. The lavishly researched film reveals the background of the spectacular attack and establishes connections. The investigators, former hostages and some of the terrorists involved are heard.
From the inner workings of the RAF. Former RAF-member Peter-Jürgen Boock reveal the many secrets and myths about the Baader-Meinhof gang a.k.a. RAF - Rote Armee Fraktion.
On December 21, 1975, six terrorists from the Revolutionary Cells, led by Carlos 'The Jackal' forced their way into the conference room of the OPEC headquarters in Vienna and took seventy ministers hostage. A gun battle with the police ensued, and three people were killed. One terrorist was seriously wounded. The terrorists managed to escape to Algiers with a few hostages and the wounded man. There the hostages were released. The wounded terrorist was Hans-Joachim Klein. At the moment that Klein arrived in Algiers, he decided to quit terrorism.
"Klein, a German Case" - The inside story on international terrorism related by an ex-terrorist Hans Joachim Klein. Through interviews, archive footage and reconstitution that clarify certain events, Klein reveals the workings of international terrorism : the underground networks, his participation in the OPEC bombing in Vienna, training camps, the manipulating role played by certain governments and the cynicism of those underground shadows that terrorized the world for 20 years.