Ferguson argued that the 93 counts he was charged with were related to the year 1993, and had it been 1925 he would have been charged with only 25 counts. He admitted bringing the gun onto the train, but claimed he fell asleep, and another man grabbed his gun and began firing. He also argued of a mysterious man named Mr. Su, who had information concerning a conspiracy against him. He also found another man who was willing to testify the government implanted a computer chip in Ferguson's brain, but at the last minute decided not to call him to the stand. This individual, Raul Diaz, was a parapsychologist from Manhattan and claimed during a press conference on the courthouse steps to have witnessed an Oriental man press a chip into Ferguson's head prior to the attack. According to Diaz, the Oriental man told him to behold what he was about to do prior to pushing the button. "He was lasered out by a remote-control device," Diaz told reporters outside the courtroom. "He was zapped, just like that, right out of the twilight zone" and was "commanded to go up and down the aisle shooting people."