Jeff Turner had been drinking that Friday night. He undoubtedly was over the legal limit for alcohol as well. When Jeff left the bar, he got into his car and began to drive home. He was so intoxicated that he forgot to turn his lights on so oncoming cars and pedestrians could not see his vehicle in the darkness. Suddenly, Jeff felt a thump as if he had rolled over a log or something. He stopped, got out of his car to see that he had struck a pedestrian in a crosswalk. The pedestrian was still alive but Jeff panicked, got back into his car and left the scene of the accident. He did not call 911. He realized he was almost out of gas, pulled into a gas station, where he was suddenly apprehended by police officers. Apparently, the car driving behind Jeff called the police, 911 and told the police of Jeff's whereabouts. The policeman pulled Jeff out of his car and handcuffed him and put him in the backseat of the policeman's patrol car. All was quiet in the patrol car until Jeff blurted out that he was the one who ran over the pedestrian and left the scene of the crime. When Jeff's trial commenced, his attorney moved that his confession not be admitted into evidence. The court agreed and the confession was never used against Jeff. Why?