A 37-Year-Old Inmate Has Died Following A Possible Altercation At The U.S. Penitentiary Lee In Southwest Virginia. Prison Officials Say Jefferson Arango Castellanos Was Found Unresponsive Tuesday Afternoon And Later Died At A Local Hospital. He Was Serving A 48 Year Sentence For His Role In The Drugging, Kidnapping And Robbery Of Two U.S. Soldiers In Columbia. The FBI Is Now Investigating The Incident. No Other Inmates Or Staff Were Injured.