Tom, I’m still curious about your claim that the police had a “likely suspect” in custody. Again, all I see is that the police knew of the existence of a boyfriend, and dispatched some uniforms to bring him in.
Even if they managed to bring Thornhill in before Cho started shooting up Norris Hall, I don’t see that even that demonstrates more than the police knew of the existence of a boyfriend, and were able to even put their hands on him.
That isn’t evidence. That’s acting on a knee-jerk assumption - an ancient assumption that if someone gets killed, the victim probably knew the killer. IIRC, it’s still a better-than-even bet, but by a much slimmer margin than it was 40 years ago.
And obviously, a lot depends on where the killing took place. If someone gets killed in their private residence, then the killer was either someone who lived there, or someone who was allowed in, or someone who broke in. The number of people who get killed each year by a stranger breaking into their private residence is not that large, no matter how it might fuel the home security business. Of course the killer’s probably going to be someone in the household.
A college dorm is a whole 'nother matter. Who has access to a dorm? First of all, the hundreds of students living there do, and many of them, in a large dorm, don’t know one another. Second, it’s not that hard, if you’re a student, even if the dorm has doors that lock, to just be there when someone’s leaving a dorm, and have them hold the door open for you.
IOW, there’s no logical reason that a college dorm killing should be assumed to be domestic, in the absence of other evidence.
And I doubt there’s good statistical evidence on that score, either: college dorms are so rarely the site of murders that the database, if anyone’s bothered to put one together, has to be pretty small and statistically unreliable.
So, barring still-unknown evidence, there was no reason for anyone to believe that this killing was a domestic crime.
At any rate, the question of whether this is merely hindsight will be adjudicated in court. Any bets on how that will come out?