http://sports.espn.go.com/ncw/news/story?id=2400335
Maggie Dixon died after suffering heart arrhythmia. I saw some of the NCAA first round game #15 Army v. #2 Tennessee and they talked about the great strides she made in the Army program in less than a year (she got the job in Oct 2005!). She was only 28 years old, and unexpected deaths like this always make me stop and reflect; my mortality check.
Edit: another link to an article about her (and her brother Pitt coach Jamie Dixon).
http://sports.espn.go.com/ncw/columns/story?columnist=wojnarowski_adrian&id=2399580