Just announced at a press conference the suspect has been identified as Seung-Hui Cho
A senior English Major, he had a .22 Caliber handgun and a 9mm hand gun. More as it's available.
The Wikipedia Articles are now stating the suspect's name is Seung-Hui Cho
http://en.wikipedia.org/wiki/2007_Virginia_Tech_shooting#Suspect
Cho Seung-hui