Former Bollingbrook, Ill. police officer Drew Peterson in New York for an appearance on the "Today Show" February 2008. (AP Photo/Richard Drew, File)

Former Bolingbrook police officer Drew Peterson poses for a photo shoot on the back deck of his home Monday, Nov 19, 2007 in Bolingbrook, Ill. Peterson's wife 28 year old Stacy Peterson was reported missing on Oct. 29, 2007 and authorities continue to search for clues in her disappearance. Her husband has been named a suspect in the case. (AP Photo/M. Spencer Green)

Former Bolingbrooki police Sgt. Drew Peterson walks out on the back deck of his home to pose for a photo shoot Monday, Nov 19, 2007 in Bolingbrook, Ill. Peterson's wife 28-year-old Stacy Peterson was reported missing on Oct. 29, 2007 and authorities continue to search for clues in her disappearance. Her husband has been named a suspect in the case. (AP Photo/M. Spencer Green)

Former Bolingbrook police Sgt. Drew Peterson poses for a photo shoot on the back deck of his home Monday, Nov 19, 2007 in Bolingbrook, Ill. Peterson's wife, 28-year-old Stacy Peterson was reported missing on Oct. 29, 2007 and authorities continue to search for clues in her disappearance. Her husband has been named a suspect in the case. (AP Photo/M. Spencer Green)

Former Bolingbrook police sergeant Drew Peterson leaves his home Monday, Nov 26, 2007 in Bolingbrook, Ill. The FBI will join Illinois State Police and local authorities today in the search for Peterson's wife, 28 year old Stacy Peterson, who was reported missing on Oct. 29, 2007. Her husband has been named a suspect in her disappearance. (AP Photo/M. Spencer Green)

Former Bolingbrook police sergeant Drew Peterson opens the garage door of his home to park his motorcycle Monday, Nov 19, 2007 in Bolingbrook, Ill. Peterson's wife Stacy Peterson was reported missing on Oct. 29, 2007 and authorities continue to search for clues in her disappearance. Her husband has been named a suspect in the case. (AP Photo/M. Spencer Green)

Former Bolingbrook police officer Drew Peterson leaves his home on his motorcycle Monday, Nov 19, 2007 in Bolingbrook, Ill. Peterson's wife 28 year old Stacy Peterson was reported missing on Oct. 29, 2007 and authorities continue to search for clues in her disappearance. Her husband has been named a suspect in the case. (AP Photo/M. Spencer Green)

**FILE** Former Bolingbrook police sergeant Drew Peterson talks to a member of the media as he leaves his home in Bolingbrook, Ill., in this Nov, 26, 2007, file photo. Peterson's wife, Stacy, was reported missing Oct. 29, 2007, and he has been named a suspect in the disappearance. With the investigation continuing, authorities face the possibility they may never find any trace of Peterson. That possibility raises the question of whether anyone could be brought to trial, whether it's her husband or anyone else. (AP Photo/M. Spencer Green, file)

Drew Peterson leaves court in Joliet, Ill., Monday, March 17, 2008, after a Will County judge ruled that Peterson can have his vehicles back. The judge scheduled a March 25 hearing on what to do with the weapons also taken from Peterson's home during an investigation of his wife's disappearance. The judge also told Peterson he will get copies of the computer hard drives taken from his home within 15 days. Peterson's wife, Stacy, disappeared in October 2007, and authorities reopened the investigation into the 2004 death of Kathleen Savio, who was another one of Peterson's wives. It was Peterson's first appearance in a courtroom for either case. (AP Photo/M. Spencer Green)

Drew Peterson, center, leaves court in Joliet, Ill., Monday, March 17, 2008, after a Will County judge ruled that Peterson can have his vehicles back. The judge scheduled a March 25 hearing on what to do with the weapons also taken from Peterson's home during an investigation of his wife's disappearance. The judge also told Peterson he will get copies of the computer hard drives taken from his home within 15 days. Peterson's wife, Stacy, disappeared in October 2007, and authorities reopened the investigation into the 2004 death of Kathleen Savio, who was another one of Peterson's wives. It was Peterson's first appearance in a courtroom for either case. (AP Photo/M. Spencer Green)

Dr. Phil McGraw, right, interviews Drew Peterson about the case of his missing spouse Stacy Peterson and the death of his third wife Kathleen Savio. (AP Photo/CBS, Craig Mathew Imaging)

Former Bolingbrook, Ill, police sergeant Drew Peterson arrives at the Will County Courthouse,Friday, May 22, 2009, in Joliet, Ill., forr a court appearance. Peterson has been charged with first-degree murder in the 2004 death of his former wife Kathleen Savio. (AP Photo/M. Spencer Green)

Drew Peterson final hours of freedom at home in Bolingbrook before being arrested on murder charges for Kathleen Savio. (Photo by Richard A. Chapman/Sun-Times)

Drew Peterson final hours of freedom at home in Bolingbrook before being arrested on murder charges for Kathleen Savio. (Photo by Richard A. Chapman/Sun-Times)

State police Lt. Carl Anderson (left) almong with another investigator escort Drew Peterson into District 5 State Police headquarters Thursday evening. Peterson was arrested during a traffic stop and charged with the March 2004 murder of his third wife Ka

Drew Peterson final hours of freedom at home in Bolingbrook before being arrested on murder charges for Kathleen Savio. (Photo by Richard A. Chapman/Sun-Times)

Drew Peterson is escorted to a waiting Will County Sheriff's Department van after his arraignment for the murder of Kathleen Savio, Monday morning at the Will County courthouse in Joliet. (File photo | Liz Wilkinson Allen, Sun-Times Media)

Former Bolingbrook, Ill., police sergeant Drew Peterson leaves the Will County Courthouse in Joliet, Ill., Friday, May 8, 2009, after his arraignment on charges of first-degree murder in the 2004 death of his former wife Kathleen Savio, who was found in an empty bathtub at home. (AP Photo/M. Spencer Green)

FILE - In this May 8, 2009 file photo, former Bolingbrook, Ill. police Sgt. Drew Peterson arrives at the Will County Courthouse in Joliet, Ill., for his arraignment on charges of first-degree murder in the 2004 death of his former wife Kathleen Savio. One thing became clear as a police officer testified Friday, Jan. 22, 2010, about the 2004 investigation into Savio's death: They pretty much blew it, failing to collect a shred of forensic evidence and allowing her ex-husband to sit in on interviews with potential witnesses. (AP Photo/M. Spencer Green, File)

FILE - In this May 8, 2009 file photo, former Bolingbrook, Ill., police sergeant Drew Peterson yells to reporters as he arrives at the Will County Courthouse in Joliet, Ill. A state appellate court on Tuesday, July 26, 2011 refused to overturn a Will County judge's decision barring prosecutors from using some hearsay, or second hand, evidence against former Bolingbrook police Sgt. Drew Peterson. Peterson is charged with first-degree murder in the 2004 slaying of third wife Kathleen Savio. He also is a suspect in the 2007 disappearance of his fourth wife, Stacy Peterson. (AP Photo/M. Spencer Green, File)

Will County States Attorney James Glasqow and Peterson attorney Joel Brodsky leave the Will County Courthouse after a hearing on the Kathleen Savio autopsy. (File photo | John Patsch, Sun-Times Media)

Rob Lowe (as Drew Peterson) and Kaley Cuoco (as Stacy Peterson) from the Lifetime channel original movie "Untouchable", based on the book by former Sun-Times Media reporter Joe Hosey.

Rob Lowe as Drew Peterson in the Lifetime channel original movie, "Untouchable" based on the book by former Sun-Times Media reporter Joe Hosey