Ann Miller Kontz pleaded guilty Nov. 8, 2005, to second-degree murder and conspiracy to commit first-degree murder in the Dec. 2, 2000, arsenic poisoning death of her then-husband Eric Miller, a pediatric AIDS researcher at the University of North Carolina at Chapel Hill.

Raleigh police spent nearly four years pursuing Kontz, a former chemist and researcher at GlaxoSmithKline, before she was indicted on first-degree murder in September 2004.