How else would they be able to look at a sperm sample and know who it was? Not everyone out there has a DNA record that the police have on file.
Congratulations to this thread. It was right on the mark. The only thing not surmised was the "extra" semen. Or that the boys HANDED the fingernails to the police!!
We thought that because in the first defense DNA press conference they stated that the report indicated there was no DNA in or on her body from anyone to indicate any sex had taken place, period....
This non-LAX match simply highlights why a prosecutor should let the police complete their investigation before taking a case.