Could be the state lab merely told Fong that the Lax team exemplars didn't match. The didn't specify what or how much DNA they found on CGM.
As I understand it, the state lab looked for DNA the simplest, and cheapest, way, and found nothing from the lax players.
Nifong then opted for a more sensitive but also much more expensive test, Y-STR testing; which revealed maybe much more than he wanted to find out--multiple DNA donors (but again, none from the players).
Someone who knows much more than I about DNA testing said he shot himself in the foot by ordering the more expensive tests; he may have been desperate by then to find SOMETHING; but instead of players' DNA all he found was more exculpatory evidence--which he didn't want and didn't turn over to the defense.
Perhaps, but the technicians at the State Lab now know that the FA's story about no prior sex are clearly outrageous lies, yet they are silent. Or are they? The defense team may be making informed hunches based on "insider" information.
This is going to make one hell of a TV movie. I could see a whole new Law and Order series based simply on the events of this case: battling ADAs in election, corrupt DA investigators, DNA lab compromised, rape scam, Media distorting facts about a non-crime, lives ruined by false accusation, fake injuries to obtain drugs, corrupt Ivy League Professor, race baiting by radical Panther group, violence by campus radicals, out of control cop, cover up of police brutality, DA coercing witnesses, robbery, prostitution ring protected by police, ... Come to think about it, you would have to make it a series because nobody would believe all of this could happen in one story line.