Red Army Faction in November of that year, the Federal Constitutional Court (Bundesverfassungsgericht) demanded that they return to custody. Only Horst Söhnlein complied with the order; the rest went underground and made their way to France, where they stayed for a time in a house owned by prominent French journalist and revolutionary, Régis Debray, famous for his friendship with Che Guevara and the "foco" theory of guerrilla warfare. Eventually they made their way to Italy, where the lawyer Mahler visited them and encouraged them to return to Germany with him to form an underground guerrilla group. The Red Army Faction was formed with
Red Army Faction being ostracized by the rest of the group. There is, however, evidence to the contrary of this hypothesis. During the trial, more attacks took place. One of these was on 7 April 1977, when Federal Prosecutor Siegfried Buback, his driver, and his bodyguard were shot and killed by two RAF members while waiting at a red traffic light. Buback, who had been a Nazi member during WWII, was considered by RAF as one of the key persons for their trial. Among other things, two years earlier, while being interviewed by "Stern" magazine, he stated that "Persons like Baader don't deserve