I understand perfectly what JLS was saying.
I don't understand what Cheshire was saying.
It's not that important what Cheshire knew and when. What's important is what Nifong knew and when. Anyway, I think Cheshire extrapolated more from the results he was given than were actually there if what he said was intended to mean that it was resolved that Mangum had no semen from consensual sex just prior to the alleged incident. It isn't a mistake or misspeak that's particularly helpful to the lax guys, so I tend to think he misinterpreted something on the report, which was most likely a partial report.