WATERLOO, Iowa (AP) — The third trial in the 1990 killing of a 9-year-old girl has ended in a mistrial after jurors failed to reach a verdict after three days of deliberations.

The Quad-City Times reports a judge Monday declared the mistrial in the trial of Stanley Liggins. He’d twice been convicted of murder in the killing of 9-year-old Jennifer Lewis, of Rock Island, Illinois. Her burned remains were found Sept. 17, 1990, in a field in Davenport.

She had been sexually abused, strangled to death and then doused with gasoline and set on fire. Liggins knew Jennifer’s mother and investigators focused on him as a suspect. He was twice convicted and sentenced to life in prison, but both convictions were overturned.

The third trial was moved to Black Hawk County from Scott County because of pretrial publicity.