A woman lights up a candle next to flowers left by others at the Atocha Bombing Memorial in Atocha train station in Madrid, Spain, Friday, March 11, 2016. Friday marks the 12th anniversary of Europe’s worst Islamic terrorist attack which killed 191 people, when attackers targeted four commuter trains with 10 shrapnel-filled bombs concealed in backpacks during morning rush hour on March 11, 2004. (AP Photo/Francisco Seco)