MADRID, Spain - More than a million demonstrators gathered in rain to protest against the bombing attack that killed about 200 people and wounded 1400 people. Spanish officials consider the Basque separatist group ETA as the prime suspect but the group of Muslim extremists, al-Qaida, led by Osama bin Laden, is also suspected as they claim for responsibility, whether it is true or not.
"I saw the trains and I burst into tears," said Isabel Galan, 32. "I felt so helpless, felt such anger."
"We will bring the guilty to justice," Prime Minister Jose Maria Aznar said at a news conference.
"They are analyzing absolutely everything," a Spanish official said, speaking on condition of anonymity. "All sectors of the police force are involved."