Because they didn't know! If you actually watched the news for a decent amount of time then you would have realized that they thought he fled the campus from evidence they found inside the dorm rooms IF it was the same person. Which they still don't know. Seriously, you don't know what you are talking about.
And ya, VT has their own police force whoever was wondering, alot of schools do. Michigan State has their own and they are everywhere, you can almost always see a cop SUV (they don't drive cars..). But ya, shit like that scares me, MSU has 45000 students, thats a lot of people for shit to go down.
You're not drunk if you can lie on the floor without holding on
(n.): Something that can be looked down on and approved of at the same time.