Schleyer's abduction was planned by Siegfried Haag, but he was arrested in 1976, so his replacement, Brigitte Mohnhaupt, carried out the abduction. On 5 September 1977, an RAF “commando unit” attacked the chauffeured car carrying Schleyer, then president of the German employers' association, in Cologne, just after the car had turned right from Friedrich Schmidt Strasse into Vincenz-Statz Strasse. His driver, Heinz Marcisz, 41, was forced to brake when a baby carriage suddenly appeared in the street in front of them. The police escort vehicle behind them was unable to stop in time, and crashed into Schleyer's car. Four masked RAF members then jumped out and sprayed machine gun and machine pistol bullets into the two vehicles, killing Marcisz and a police officer, Roland Pieler, 20, who was seated in the backseat of Marcisz's car. The driver of the policeescort vehicle, Reinhold Brändle, 41 and a third police officer, Helmut Ulmer, 24, who was in the second vehicle were also killed. The hail of bullets riddled over twenty bullet wounds into the bodies of Brändle and Pieler. Schleyer was then pulled out of the car and forced into the RAF assailants' own getaway van. Schleyer was hidden in a highrise in Erftstadt near Cologne. The police came very close to finding him, but due to lack of internal communication could not rescue him. Several local police officers were convinced that Schleyer was held in the aforementioned highrise close to the autobahn. One investigator had rung the doorbell of the apartment in question, but nobody had conveyed this information to the crisis center of the federal police. The RAF demanded that the government release imprisoned members of their group. The government refused to give into RAF's demands or negotiate. The RAF sent the government a picture of Schleyer alive, in captivity, on 8 October 1977. After 43 days, the government had not given in to the demands of the kidnappers. Hours after the German counterterrorism unit GSG 9 ended the Palestinianhijack of Lufthansa Flight 181, the imprisoned RAF members Baader, Gudrun Ensslin and Jan-Carl Raspe were found dead in their prison cells. After Schleyer's kidnappers received the news of the death of their imprisoned comrades, Schleyer was taken from Brussels, Belgium on 18 October 1977, and shot dead en route to Mulhouse, France, where his body was left in the trunk of a green Audi 100 on the rue Charles Péguy.
Investigation
On 9 September 2007, former RAF member Peter-Jürgen Boock mentioned that the RAF members Rolf Heissler and Stefan Wisniewski were responsible for Schleyer's death. Schleyer's widow, Waltrude Schleyer, campaigned against clemency for his kidnappers and other members of the RAF. She died on 21 March 2008, in Stuttgart.
