Drudge links to another story about Cho’s alleged connection to Emily Hilscher with an important fact I haven’t seen before:

Witnesses to the shooting said that the gunman was involved in an argument with a girlfriend and had later stormed out of the dormitory building.

A counsellor – believed to be Mr Clark, who was also a resident adviser – was called to calm the situation at the dormitory.

The gunman returned at 7.15am and shot Ms Hilscher and Mr Clark. US media reported that Mr Clark had been shot in the neck.

I thought he arrived at the building initially with gun in hand, i.e., planning to kill her. But that’s not necessarily true now; he might have gone there to argue with her, stormed off back to his room to get the gun, and then come back to kill her and Clark. The two hours between that shooting and the Norris Hall rampage would have given him time to write the note, too. So let’s not assume just yet that this whole thing was planned days in advance.

Witnesses to the shooting said that the gunman was involved in an argument with a girlfriend and had later stormed out of the dormitory building.

A counsellor – believed to be Mr Clark, who was also a resident adviser – was called to calm the situation at the dormitory.

Sources say Cho, 23, killed two people in a dorm room, returned to his own dorm room where he re-armed and left the note, then went to a classroom building on the other side of campus. There, he killed 30 more people in four classrooms before shooting himself in the head.

After two people, Emily Jane Hilscher, a freshman, and Ryan Clark, the resident adviser whose room was nearby in the dormitory, were shot dead, the campus police began searching for Karl D. Thornhill, who was described in Internet memorials as Ms. Hilscher’s boyfriend.

According to a search warrant filed by the police, Ms. Hilscher’s roommate had told the police that Mr. Thornhill, a student at nearby Radford University, had guns at his town house. The roommate told the police that she had recently been at a shooting range with Mr. Thornhill, the affidavit said, leading the police to believe he may have been the gunman.

But as they were questioning Mr. Thornhill, reports of widespread shooting at Norris Hall came in, making it clear that they had not contained the threat on campus. Mr. Thornhill was not arrested, although he continues to be an important witness in the case, the police said.

At the time of the dormitory shootings, Col. W. Steven Flaherty, the superintendent of the Virginia State Police, said, “There was certainly no evidence or no reason to think that there was anyone else at that particular point in time.”