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Photo by: Don Petersen

Virginia Tech police officers console one another as they move toward the scene where a fellow police officer was killed in a parking lot on the campus of Virginia Tech, Thursday December 8, 2011, in Blacksburg, Va. A man killed a police officer and another person after a traffic stop Thursday at Virginia Tech, sending a shudder through campus as students and faculty were told to stay inside and police searched for the gunman, school officials said. (AP Photo/Don Petersen)

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