Cops: No Link Found Between Cho, Victims
Police say witnesses saw a suspicious male in the Virginia Tech building where 30 people were killed and doors to the building were chained shut two days before the shootings.
Police held a news conference in Roanoke on Friday about the status of the investigation.
Virginia Tech police chief Wendell Flinchum says the suspicious man was seen at about 10 a.m. in Norris Hall on April 14. Student gunman Seung-Hui Cho carried out the killings in Norris Hall after killing two students in the West Ambler Johnston dormitory on April 16.
Cho had chained shut the Norris Hall exits before the shootings, then shot himself to death as police broke through the chains and stormed inside.
State Police said they don't know how long the doors to Norris Hall were chained shut that Saturday.
State police superintendent Col. Steven Flaherty said it would be speculation to say that the chained doors might have been a practice run on Cho's part.
Flaherty says they still don't have evidence linking Cho to his victims. He says investigators are still looking for Cho's cell phone and his computer hard drive.
CBS affiliate WDBJ in Roanoke also reported that the police disclosed today: