Virginia Tech Massacre: Gunman a Student

Update: 8:29 a.m. (Revised)
Overnight we have learned that the 23 year old Asian gunman was actually a college student at Virginia Tech. From the wording of reporting related to the executed warrant on his "room", it is also apparent that he was living in a dorm, not off campus. This may answer my earlier question as to why no one had focused on the perp's vehicle.
WSLS reports:

"The president of Virginia Tech says the shooter in yesterday's rampage was a student at the university. Charles Steger said the shooter in the second shooting at Norris Hall was Asian and lived in a dorm on the Blacksburg campus. Steger told ABC News that he expects that investigators will get a ballistics report this morning, and he said they will 'be making it public as soon as we can.'
Steger added News that the shooter may have been locked in West Ambler Johnston dormitory when the building was locked down after the first shooting. He says the 'investigation is unfolding as we speak.'"

I wonder why Chief Flinchum repeatedly said that the gunman was not a student at VTech.

The College Columbine: Virginia Tech's "Person of Interest"

Update: 8:07 p.m.
The highlights of the 7:30pm ET press briefing are:

• Virginia Tech Campus Police Chief Wendell Flinchum has preliminary ID of gunman, but are not releasing the name.
• Recovered two weapons, but won't release the details
• ATF is comparing ballistics from West AJ and Norris Hall
• Person of interest ID'd after shooting at West Ambler Johnston. That person is not in custody. He is not known to police, according to Chief Flinchum.
• The first "person of interest" is still a person of interest -- "because he knows one of the victims" found dead in the dorm room.
• The "person of interest" is NOT a VT student
  
• The gunman found dead in Norris Hall is NOT the "person of interest" questioned in the West AJ dorm shooting.
• Murder /suicide has been ruled out at the incident in the dorm
• Chief Flinchum states that the Blacksburg Police Dept. located the "person of interest" in the dorm shooting -- and conducted an interview with him about the same time as the shootings were taking place in Norris Hall
• From the above statements, we can conclude that the police think that the shootings in West AJ are NOT related to the shootings in Norris Hall