Complex sentence: Majid Khan is the only legal resident of the United States who is held in the Guantanamo Bay detainment camps, after he returned to his native Pakistan to visit his wife and was captured by Pakistani authorities who handed him over the CIA.
Split into simpler sentences: Majid Khan is the only legal resident of the United States who is held in the Guantanamo Bay detainment camps. He was detained after returning to his native Pakistan to visit his wife and was captured by Pakistani authorities who then handed him over the CIA.