On the morning of 30 October 2000, ETA terrorists planted a car bomb with 20 kilograms of dynamite at Number 60, Avenida de Badajoz, in the La Concepción district of Madrid. The terrorists detonated the device when an official vehicle was passing, containing Supreme Court magistrate José Francisco Querol y Lombardero, his chauffeur, Armando Medina Sánchez, and his bodyguard, Jesús Escudero García. Jesús Sánchez Martínez was passing through the area at the time on a Number 53 municipal bus. He was very seriously injured in the blast and died on 8 November in Ramón y Cajal Hospital. Another 64 people were wounded in the attack and more than 700 homes in 35 buildings were damaged.
Jesús Sánchez Martínez, originally from Villamayor de Santiago (Cuenca), was 35 years old and married.