A) Nifong's ego can't take anymore abuse ~ and it's only going to get worse from here on out; B) Nifong has want he wanted, a job for the next 3.5 years and retirement (at a rate of pay much higher than he would have had as an ADA); C) pressure from above.
Take your pick - I don't think there are any wrong answers....
About the SANE nurse:
http://www.freerepublic.com/focus/f-bloggers/1765964/posts
Relatively little has appeared in the public record about Levicy. What is known doesn’t suggest a figure whose neutrality would inspire confidence. Her undergraduate degree, from the University of Maine, came in women’s studies—the discipline that produced copious Group of 88 members, and home of feminist law theory, which contends that women never lie about rape.
She stated that one of her proudest moments in college came when she produced and directed a performance of Eve Ensler’s The Vagina Monologues. Before becoming a nurse, Levicy worked as a healthcare associate for Planned Parenthood, a whitewater rafting guide, and a leader of outdoor programs for the University of Maine. Directly before coming to North Caroline, she was employed by a wilderness program, where she told people, “If saying the word, vagina feels foreign, then I recommend looking into a mirror and saying, vagina . . . vagina . . . vagina.” This rhetoric is not exactly mainstream on issues of gender.