This is for real, I mean it, well, at least I heard it over the radio
One of the guys who crashed the planes, had a girlfriend, and he was VERY in love wirh her, the guy did what he did and she turned herself to the police, because she wasn't stupid. After that, she got a letter from his boyfriend telling her two things: that on the 11th something BIG was going on, and warning her not to go to any mall on October 31.