[fhdkweig]

The "one of them" was a reference to the speculation that the killer would turn out to be a blue hair "tranny". https://www.yahoo.com/news/articles/trump-loyalist-spreads-w...

There was also the theory that it was a black person, hence all the death threats to historically black colleges and universities (HBCUs) https://duckduckgo.com/?q=death+threats+hbcu

So, yes, there was quite a bit of "see, it wasn't one of ours, it was one of yours" after the guy was caught. Especially when the images of the shooter's mother started surfacing indicating he was raised that way. https://duckduckgo.com/?q=tyler+robinson+mother+gun . Charlie Kirk's mother at the memorial service specifically blamed college for radicalizing him, saying that good mother's wouldn't send their kids to college. (I don't have that clip.)

In general, my philosophy is to not speculate publicly when the shooter was going to get caught and identified quickly anyway.