You left out, "Mangum bails on Nifong, so he must dismiss, blaming Mangum's cold feet on her emotional trauma and fear for her life, but goes on to say he believes the boys to be guilty and is disappointed he won't be able to mount a prosecution due to Mangum's emotional collapse."
I guess it is possible Mangum bails on Nifong but as the woman who said that Nifong would have cut off one of her fingers to point at three if he had to I suspect that is not likely. Still I should have listed a general Nifong drops the charges category for any number of reasons.