Here's a look at the March 2004 bombings of commuter trains in Spain, which killed 191 people and injured more than 1,800. The bombings are the deadliest terrorist attack in Spain's history. Facts: On ...
March 18, 2004 - Spanish authorities arrest four North Africans in connection with the bombings. The radio report says three were arrested in the Madrid suburb of Alcala de Henares and the other North ...