Geraldo hits the nail on the head in his interview with the VT president.
“Did investigators find any weapons at the site of the first shooting?”. Answer: No.
Even if univ admins thought it was a domestic and/or isolated incident, THAT answer tells you they knew there was an armed man on the loose. Seems inexcusable that they didn’t raise all alarms at that time.
Hard to explain the gunshot wounds with no guns around.