Duke Lacrosse Team Assault- Is Crystal Mangum a liar?

Cystal Mangum, the woman hired as a stripper for a Duke Lacrosse party in 2006 has written a memoir about her experience called "The Last Dance for Grace: The Crystal Mangum Story." In Mangun's book, Crystal talks about her experience with the three members of the Duke Lacrosse team, and how they assaulted her. However, the case against the Duke Lacrosse players, Seligmann, Dave Evans and Collin Finnerty, proved the young men to be innocent and Crystal Mangum's claim to be lacking substance. Mangum tells the readers that they can interpret the case however they want, but the state of North Carolina decided to over look certain incidents that happened the night of the assault.

Later, Crystal Mangum tells all that the details of the case no longer matter, but that she hopes people will listen to her story and learn from it.

Is Crystal Mangum a liar? Did she lie about being assaulted by the Duke Lacrosse team?