of the founders of the RAF. The bombs detonated at midnight when no one was in the store and no one was injured. As the bombs ignited, Gudrun Ensslin was at a nearby payphone, yelling to the German Press Agency, "This is a political act of revenge." On 11 May 1972, the RAF placed three pipe bombs at a United States headquarters in Frankfurt. The bombing resulted in the death of a US officer and the injury of 13 other people. The stated reason for the bombing was a political statement in protest of US imperialism, specifically, a protest of US mining of North Vietnam harbours. On 19 May 1972, members of the RAF armed six bombs in the Springer publishing house in Hamburg. Only three of the five bombs exploded, but 36 people were injured. On 24 May 1972, two weeks after the bombing of the United States headquarters in Frankfurt, the group set off a car bomb at the IDHS (Intelligence Data Handling Service) Building at Campbell Barracks in Heidelberg. The bombing resulted in the deaths of three soldiers and the injury of five others. On 10 November 1974, the group killed Günter von Drenkmann, the president of Germany's superior court of justice. The killing occurred after a string of events that led to a failed kidnapping by the 2 June Movement, a group that splintered off the RAF after the death of Holger Meins by hunger strike in prison. Starting in February 1975 and continuing through March 1975, the 2 June Movement kidnapped Peter Lorenz, who at the time was the Christian Democratic candidate in the race for the mayor of West Berlin. In exchange for the release of Lorenz, the group demanded that several RAF and 2 June Movement members that were imprisoned for reasons other than violence be released from jail. The government obliged and released several of these members for the safe release of Lorenz. On 24 April 1975, six members affiliated with the RAF seized the West German Embassy in Stockholm. The group took hostages and set the building to explode. They demanded the release of several imprisoned members of the RAF. The government refused the request, which led to the murder of two of the hostages. A few of the bombs that were intended to blow up the embassy prematurely detonated, which resulted in the death of two of the six RAF