A woman prays after placing a flower at a memorial for the 2004 train bombing victims inside Atocha train station in Madrid, Spain on Monday, March 11, 2024. March 11 marks European Remembrance Day for Victims of Terrorism after the Madrid train bombing on March 11, 2004 that killed nearly 200 people. (AP Photo/Bernat Armangue)
Flowers are placed at a memorial for the train bombing victims inside Atocha train station in Madrid, Spain on Monday, March 11, 2024. March 11 marks European Remembrance Day for Victims of Terrorism after the Madrid train bombing on March 11, 2004 that killed nearly 200 people. (AP Photo/Bernat Armangue)
Passengers embrace at Atocha train station in Madrid, Spain on Monday, March 11, 2024. March 11 was chosen as a day of continent-wide commemoration of terrorism victims after the train bombing in the Spanish capital on March 11, 2004 that killed nearly 200 people. (AP Photo/Bernat Armangue)
FILE - Rescue workers line up bodies beside a bomb damaged passenger train at Atocha station following a number of explosions on trains in Madrid on March 11, 2004, just three days before Spain's general elections. Victims of terror attacks are a symbol of the constant need to guard freedom and the rule of law against threats, King Felipe VI of Spain said Monday March 11, 2024 at a ceremony marking the 20th anniversary of one of Europe’s deadliest extremist attacks. (AP Photo/Denis Doyle, File)
Passengers wait for the train at Atocha train station in Madrid, Spain on Monday, March 11, 2024. March 11 was chosen as a day of continent-wide commemoration of terrorism victims after the train bombing in the Spanish capital on March 11, 2004 that killed nearly 200 people. (AP Photo/Bernat Armangue)
A woman points to the name of a train bombing victim at a memorial inside Atocha train station in Madrid, Spain, Monday, March 11, 2024. Victims of terror attacks are a symbol of the constant need to guard freedom and the rule of law against threats, Spain’s King Felipe VI said Monday at a ceremony marking the 20th anniversary of Europe’s deadliest terror attack. March 11 was chosen as a day of continent-wide commemoration of terrorism victims after the train bombing in the Spanish capital on March 11, 2004 that killed nearly 200 people. (AP Photo/Bernat Armangue)
People queue to lay flowers at a memorial for the 2004 train bombing victims inside Atocha train station in Madrid, Spain, Monday, March 11, 2024. Victims of terror attacks are a symbol of the constant need to guard freedom and the rule of law against threats, Spain’s King Felipe VI said Monday at a ceremony marking the 20th anniversary of Europe’s deadliest terror attack. March 11 was chosen as a day of continent-wide commemoration of terrorism victims after the train bombing in the Spanish capital on March 11, 2004 that killed nearly 200 people. (AP Photo/Bernat Armangue)
FILE - Rescue workers cover bodies alongside a bomb-damaged passenger train, following a number of explosions in Madrid, Spain, on March 11, 2004. Victims of terror attacks are a symbol of the constant need to guard freedom and the rule of law against threats, King Felipe VI of Spain said Monday March 11, 2024 at a ceremony marking the 20th anniversary of one of Europe’s deadliest extremist attacks. (AP Photo/Paul White, File)
A woman lights a candle at a memorial for the train bombing victims inside Atocha train station in Madrid, Spain on Monday, March 11, 2024. Victims of terror attacks are a symbol of the constant need to guard freedom and the rule of law against threats, Spain’s King Felipe VI said Monday at a ceremony marking the 20th anniversary of Europe’s deadliest terror attack. March 11 was chosen as a day of continent-wide commemoration of terrorism victims after the train bombing in the Spanish capital on March 11, 2004 that killed nearly 200 people. (AP Photo/Bernat Armangue)