In a pretrial hearing, neighbor Sharon Bychowski said she found Stacy Peterson in tears outside her home eight days before she went missing in October 2007, the Chicago Tribune reported Monday.
When asked what was wrong, Stacy Peterson said she wanted to divorce her husband but he "wouldn't go," Bychowski testified.
Peterson showed Bychowski boxes of Drew Peterson's belongings she had packed and put in the garage.
She then told Bychowski, "If I disappear, Sharon, it's not an accident. He killed me," Bychowski testified.
Peterson is in custody facing charges of killing his third wife, Kathleen Savio, 40, whose bathtub drowning was staged to look like an accident, Illinois prosecutors allege.
The preliminary evidence hearing will determine what hearsay testimony can be used in Peterson's upcoming trial.
Drew Peterson has not been charged in Stacy Peterson's disappearance, the Tribune said.