his name was reda hame. marc trévidic, who was weeks away from the end of his term as a counterterror magistrate - now questioned hame. >> (translated): to begin with, he said he had a terrorist mission. the general idea was to shoot a crowd, to shoot people, and his mission was to do so during a rock concert. but the target was only to be given to him later on. there was the idea that, "you go back to france, and we will contact you with encrypted messages. that's how we will operate." he surprised me especially when he explained how much abaaoud wanted to hurt us. he was very clear, he will do whatever it takes, he wanted to commit a huge attack at all costs. it was quite chilling. >> narrator: on august 21, just one week later, the warnings were confirmed. a heavily armed man, ayoub el khazzani, opened fire on a high-speed train between amsterdam and paris. the gunman was overpowered by three american tourists, and no one was killed. a year earlier, spanish authorities had actually warned their french cou