they pleaded not guilty. but the forensic garment analysis was more than enough to satisfy the jury. >> most of the evidence they had was circumstantial. and this was the only forensic evidence that was basically a fingerprint that was very unique, that pointed to one of the bank robbers. >> all three were convicted. larry and claude were each sentenced to 50 years in the federal penitentiary. >> they were the men who had taken an oath to protect these people from violent criminal activity, and they're the very people preying upon them. and so we felt that there was a certain amount of culpability that went to those two that didn't go to alvin. >> alvin was sentenced to 15 years. >> and i think it was the shirt that an fbi investigator at the lab was able to identify that this is the exact shirt that was