María Dolores Durán lived in the Entrevías district. Each morning she left her 17-month-old son at the crèche and caught the suburban train to her work at the Reale insurance company. During her nine years at the firm, she had worked her way up from telephone operator to administrative assistant. On the morning of 11 March, Lola —as she liked to be called— was traveling with a colleague, Nuria del Río, her sister, Marta, and her boyfriend. Lola and Nuria were killed in the train that was blown up at Atocha station.
11 March 2004 fell on a Thursday. Early that morning, a number of terrorists with links to Al-Qaeda planted thirteen bombs on four suburban trains covering routes running through Madrid. Ten of the bombs exploded between 7.37 and 7.39 am, when the trains were at Atocha, El Pozo and Santa Eugenia stations and alongside Calle Téllez. 191 people were killed in the attack and around 1,500 were wounded. It was the deadliest terrorist attack in Spanish history. On 3 April 2004, agents from the Special Operations Group (GEO) were about to enter an apartment in Leganés where the perpetrators of the attacks were believed to be hiding when the terrorists detonated twenty kilograms of explosives in an act of collective suicide. The ensuing blast killed one of the officers, bringing the total number of people killed by the 11 March bombers to 192.