I’ve never understood that. So the DNA was tested wrong in a manner that it tested positive for OJ and no one else?
I can't say. I do know that at the time, DNA testing was a relatively new science. IIRC, I think the point my co-worker was making was that the methodology used to test the DNA at the time would only give a familiar link - and that the match they actually came up with could have matched O.J. or his son.
Again, this is something I have no particular knowledge of, just relaying what a co-worker at the time (well, a few years after the trial) mentioned.