FILE - In this May 7, 2009 file booking photo provided by the Will County Sheriff's office in Joliet, Ill., former Bolingbrook, Ill., police officer Drew Peterson is shown. Peterson is charged with first-degree murder in the 2004 drowning death of his former wife Kathleen Savio. Opening statements in his trial are scheduled to begin Tuesday, July 31, 2012. (AP Photo/Will County Sheriff's Office, File)

Drew Peterson (left) is on trial in the death of his third wife, Kathleen Savio.

Stacy Peterson

Kathleen Savio

Deputy coroner Michael VanOver departs after testifying during day five of the Drew Peterson murder trial at the Will County Courthouse Tuesday, August 7, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Robert Deel, Illinois State Police investigator

Bolingbrook Police Lt. James Coughlin leaves court after testifying Tuesday at Drew Peterson’s murder trial. | Matthew Grotto~Sun-Times Media

Judge Edward Burmila departs at the conclusion of day five of the Drew Peterson murder trial at the Will County Courthouse Tuesday, August 7, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Drew Peterson attorney Steven Greenberg (right) returns from lunch break with prosecutors including assistant state's attorney Kathleen Patton (second from left) during day five of the Drew Peterson murder trial at the Will County Courthouse Tuesday, August 7, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Will County State's Attorney James Glasgow (left) departs at the conclusion of day five of the Drew Peterson murder trial at the Will County Courthouse Tuesday, August 7, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Drew Peterson attorneys (from left to right) Steven Greenberg, Joel Brodsky, Lisa Lopez and Joseph Lopez address the media at the conclusion of day five of the Drew Peterson murder trial at the Will County Courthouse Tuesday, August 7, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Stacy Peterson family spokesperson Pamela Bosco addresses the media at the conclusion of lunch break during day five of the Drew Peterson murder trial at the Will County Courthouse Tuesday, August 7, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Drew Peterson lawyer Joel Brodsky (right) returns from lunch with members of his team at Will County Courthouse in Joliet Wednesday, Aug. 8, 2012 | Rich Hein~Sun-Times

Drew Peterson lawyer Joel Brodsky (center) returns from lunch with members of his team at Will County Courthouse in Joliet Wednesday, Aug. 8, 2012 | Rich Hein~Sun-Times

Drew Peterson lawyer Joel Brodsky (right) returns from lunch with members of his team at Will County Courthouse in Joliet Wednesday, Aug. 8, 2012 | Rich Hein~Sun-Times

Nick Savio, brother of Kathleen, talks to reporters during a break in the Drew Peterson trial at Will County Courthouse in Joliet Wednesday, Aug. 8, 2012 | Rich Hein~Sun-Times

Nick Savio, brother of Kathleen, talks to reporters during a break in the Drew Peterson trial at Will County Courthouse in Joliet Wednesday, Aug. 8, 2012 | Rich Hein~Sun-Times

Nick Savio, brother of Kathleen, talks to reporters during a break in the Drew Peterson trial at Will County Courthouse in Joliet Wednesday, Aug. 8, 2012 | Rich Hein~Sun-Times

Drew Peterson lawyer Joel Brodsky (right) returns from lunch with members of his team at Will County Courthouse in Joliet Wednesday, Aug. 8, 2012 | Rich Hein~Sun-Times

Drew Peterson's lawyer Joe Lopez returns from lunch to the trial at Will County Courthouse in Joliet Wednesday, Aug. 8, 2012 | Rich Hein~Sun-Times

Drew Peterson lawyer Joel Brodsky (center) returns from lunch with members of his team at Will County Courthouse in Joliet Wednesday, Aug. 8, 2012 | Rich Hein~Sun-Times

A worker draws a tarp to block the view of photographers trying to photograph witnesses at the Drew Peterson trial at Will County Courthouse in Joliet Wednesday, Aug. 8, 2012 | Rich Hein~Sun-Times

A worker draws a tarp to block the view of photographers trying to photograph witnesses at the Drew Peterson trial at Will County Courthouse in Joliet Wednesday, Aug. 8, 2012 | Rich Hein~Sun-Times

Witness Kristen Anderson arrives at Will County Courthouse in Joliet Wednesday, Aug. 8, 2012, to testify in the Drew Peterson trial. | Rich Hein~Sun-Times

Witness Kristen Anderson arrives at Will County Courthouse in Joliet Wednesday, Aug. 8, 2012, to testify in the Drew Peterson trial. | Rich Hein~Sun-Times

Drew Peterson attorney Joseph Lopez arrives for the start of the Drew Peterson trial at the Will County Courthouse Tuesday, July 31, 2012, in Joliet. | Matthew Grotto~Sun-Times Media