Yesterday's Virginia Tech gunman was Cho Seung-Hui, a 23-year-old resident-alien student from South Korea. He reportedly came to this country in 1992 and grew up in Centreville, Virginia, a suburb of Washington, DC. His family owns a cleaning business. Today's Chicago Tribune says he left a note, which included "a rambling list of grievances." Aamer Madhani is a national correspondent.
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