An additional bomb threat, this time to engineering school buildings, was found at the shooting scene at Norris Hall.
At the base of a stone wall on the field near Norris Hall, people have left flowers.
The shootings at the engineering building, Norris Hall, began about 9:45.
The police were interviewing him off campus at the time of the shootings at Norris Hall.
Norris Hall was closed for the remainder of the semester.
Also early in June 2007, the university announced it would begin reoccupying Norris Hall within a matter of weeks.
Norris Hall is home to several multi-use lecture classrooms, which hold between thirty and one hundred students.
Personal effects were strewn about the entire second floor at Norris Hall.
Norris Hall, where 30 of the 32 killings occurred, has become a somber spectacle.
Three police officers stood, hands on their gun belts, in front of Norris Hall.