CRIME, body of missing woman found; car found in Bellwood [BW]

The body of a woman missing since 2000 was recently discovered near Durand, IL (northwest of Rockford). Sandra M. Daniels, 49, lived in Elm Grove, WI, a suburb west of Milwaukee. Her car was found in Bellwood in 2000. See Milwaukee Journal Sentinel (Dan Benson).

Any theories what happened to Daniels?