Then Mary Pontarelli and her family, who were Savio's next door neighbors, saw her on Saturday afternoon, and saw the bathroom light on at midnight and 2 a.m., Koch said.

On Sunday, the Pontarellis can't reach her, but “it's not until Monday night that the defendant reaches (Mary Pontarelli) and they decide to go into the house.”

10:40 a.m. Koch: Pathologist undercut own theory  

Prosecutor Chris Koch continued with his closing argument, saying that defense forensic pathologist Dr. Jeffrey Jentzen's theory that Kathleen Savio's injuries could have been caused by a fall was undercut by his own admission that the normal mechanics of a fall would not have been possible in the tiny bathtub in which she was found.

“How are you going to get airborne in a tub that's only 40 inches, but I guess she was airborne and twisting so that she could hit her head,” Koch said. “Use your common sense, ladies and gentleman.”

10:30 a.m. 'Her opinion stands for the truth'

Prosecutor Chris Koch reminded the jury that one of the state's forensic pathologists, Dr. Mary Case, is an expert in brain injury and determined that the wound to the back of Kathleen Savio's head was not sufficient to knock her unconscious.

“Her opinion stands for the truth in this case that that force was not enough to cause brain trauma,” Koch said.

Dr. Michael Baden found that the injury to Savio's diaphragm could have been caused by a strong blow or a very strong bear hug.

Koch mocked the defense assertion that there was no mark of injury to victim's body near the diaphragm so there could not have been any injury to the muscle that controls breathing.

“What did he (Drew Peterson) bring home?” Koch said, his voice rising. “Women's clothes — he brought them home that night and put them in the washing machine with his own black clothes that he had on. That we know from Stacy Peterson.”

10:25 a.m. Defense pathologist criticized 

The injuries to Kathleen Savio’s body were also a sign that her death could not have been accidental, because there were injuries to all sides of her body, prosecutor Chris Koch told the jury.

“How can you get that in one fall?” Koch asked. “You can't do it -- it's impossible.”

Koch attacked the defense pathologist, Dr. Vincent DiMaio, who said that the abrasion on Savio’s buttock was not in fact an abrasion, but rather dry skin.

Koch focused on DiMaio's admission that if it was an abrasion, it could not have happened in the tub, using DiMaio's testimony to bolster the state's contention that Savio was attacked and rendered unconscious before she was placed in the bathtub.