He underwent about ten days of rigorous interrogation and solitary confinement before he was shot and dumped into the sea .
Chuyen was working with the 5th on Project GAMMA when the Green Berets learned he might be a double agent .
Chuyen underwent about ten days of rigorous interrogation and solitary confinement before Chuyen was shot and dumped into the sea .
Chuyen was working with the 5th on Project GAMMA when the Green Berets learned he might be a double agent .