Va. Tech Shooter May Have Practiced
Investigators reveal new details of deadly April rampage
By Heather McPherson,  Newser User
Posted Aug 10, 2007 3:49 PM CDT
These entry doors to Norris Hall were chained shut by Virginia Tech gunman Seung-Hui Cho on the Virginia Tech campus in Blacksburg, Va., Thursday, June 14, 2007. The door handles have since been replaced....   (Associated Press)
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(Newser) – The Virginia Tech killer may have rehearsed his rampage 2 days before the massacre of 32 people on April 16, police investigators said today. One witness reported spotted a suspicious-looking hooded male near doors inside the academic building where the shootings took place on April 14, the Richmond Times-Dispatch reports; another witness saw chains on the door that same day.

Investigators also revealed that bloody clothing found in his room conclusively links 23-year-old Seung-Hui Cho to the two murders in a dormitory 2 hours before the shooting spree in Norris Hall. They continue to search for a link between the victims and Cho, who police now say obeyed a 2005 court order by contacting multiple mental-health facilities.