From the News & Observer (emphasis is mine):
N.C. State University Chancellor James L. Oblinger resigned this morning after days of shifting explanations about a deal he cut for former provost Larry Nielsen when Nielsen stepped down last month.
Both men are at the heart of a controversy about how former state first lady Mary Easley gained a job at the university in 2005, then an 88-percent pay hike last year to a $170,000 salary. In his resignation letter Oblinger said the university would be releasing e-mails that showed he was involved in her hiring, something he had denied.
The university had provided those e-mails to a federal grand jury investigating the Easleys after getting subpoenas.