Updated 12:11 p.m.
Judge Edward Burmila called an end to today's testimony due to a sick juror. He didn't want him to infect the other jurors.
Updated 12:10 p.m.
Doman also said Savio told her "on many occasions" that Peterson was "going to kill her and make it look like an accident."
Doman said Savio asked her to grab a suitcase from Savio's SUV in case anything happened to her. Doman said she did so, though the defense grilled her on inconsistencies she gave as to when she grabbed the suitcase. She testified she did not turn over documents to police but held on to them until 2008 when she gave copies of some documents to a producer for the Greta Van Susteren show, according to the Chicago Tribune.
She later gave copies of those documents to state police investigators.
Updated 10:06 a.m.
The day's first witness is Anna Marie Doman, Kathleen Savio's oldest sister.
Doman gave some explosive testimony about Drew Peterson allegedly banging on Kathleen Savio's door and demanding to be let in the day after she was found dead.
Doman also said Peterson cleaned the tub where Savio was found dead.
"You could see he was rubbing and rubbing and I said, 'What are you doing?' He said he was cleaning. He didn't want the kids to see the blood," Doman said.
"It didn't seem right. Why was there blood in the tub if she drowned?"
Just six weeks before she was found dead in March 2004, Savio visited Doman, Doman said. She looked "afraid" and "upset," Doman said. "Drew told her he was going to kill her. She wasn't going to make it to the divorce settlement. She wasn't going to get his pension or her children."
Prosecutors plan to call at least four witnesses to the stand Friday, including Kathleen Savio's sister, Anna Marie Doman.
ISP crime scene tech Robert Deel, locksmith Christopher Wolzen and retired Illinois State Police Sgt. Patrick Collins will also testify Friday.
It had been unclear whether Friday's testimony would include Savio's divorce attorney, who was in the hallway waiting to testify Thursday. Arguments over what he will be allowed to say delayed his appearance.
Judge Edward Burmila said he would restrict testimony from Savio's attorney to only the basic details of her divorce settlement with Peterson, according to the Chicago Tribune.
Read More: Drew Peterson Coverage on Patch