A parked car containing 40 kilograms of explosives detonated as an unmarked military van passed by, killing seven; four lieutenant colonels, a commander, a sergeant and the civilian driver of the vehicle.
[1][2] The attack was condemned by all the main Spanish political parties and led to the King of Spain cancelling his participation in the Centre of Defense Studies.
The new clue led Spain's National Court to reopen its own investigation and summon convicted terrorist Jesús García Corporales as a formal suspect.
published in El Español in 2013 in which he indicated that members of ETA's Madrid cell were directly responsible for the attack, and where he also highlighted how the Spanish State had neglected to do its part both in preventing the bombing and later pursuing guilty parties.
In 2018, Romero turned the story into one of Spain's most listened-to podcasts, Las Tres Muertes de Mi Padre[inappropriate external link?]