Go through their web sites, this appears to have something to do with one or more lesbians.
The information given out so far doesn't mention sex. Info is that the victim and killer were roommates in a dorm room, the victim reported a theft by the killer, the killer forged a suicide note purportedly by the victim that stated the victim lied about accusing the killer of theft, and the killer repeatedly stabbed the victim while she lay sleeping in their dorm room