The star witness against Pantano had a grudge and changed his story several times. An NCIS investigator took a second look into the case. He had the bodies exhumed and a second autopsy was performed. This second autopsy proved that the men were not shot in the back. They were shot from the front just like Pantano said. Also, there were several witnesses whose stories supported Pantano's version of events. They were just pushed by the wayside in favor of the witness who supported the prosecution's case. Pantano was exonerated.