There was the initial report of one fatality in the early shooting and another report that the initial confrontation was with a girlfriend and the RA who tried to intervene. Is the girlfriend dead or the RA or both? If it is true that there was only one fatality then there would be one live witness or victim to the initial encounter.
I work at Tech and the story I’ve heard is that the boyfriend himself spent the night with the girlfriend and that they got in an argument in the morning. When others in the dorm came to her “rescue” he pulled a gun and killed the girlfriend. The RA then came to help and was shot in the foot. No idea whether this is true, but it’s what I heard.