Kimberly Vaughn's twin sister Jennifer Ledbetter (left) and mother Susan Phillips (center) depart the courthouse as they await a verdict in the Christopher Vaughn murder trial at the Will County Courthouse Thursday, Sept. 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Christopher Vaughn. Photo input: 8/15/12. Will County Sheriff's Office.

The Vaughn family, (upper left to right): Christopher, Kimberly, Abigayle, and (bottom from left) Cassandra and Blake are shown in an undated photo in front of Rosemont Theater in the Chicago area, where the Phoenix University graduation was held.

Handout photo of the Vaughn family. Left to right, Blake Vaughn, 8, Christopher Vaughn, 32, Cassandra Vaughn, 11, Kimberly Vaughn 34, and Abigayle Vaughn, 12. Kimberly Vaughn and the three children were found shot to death in the family SUV on June 14th, 2007.

Kimberly Vaughn

Christopher Vaughn, of Oswego, is on trial in Will County for the murder of his wife, Kimberly, and their children in 2007. | Will County Sheriff's Office via AP

Mug shot of Christopher Vaughn looks 7/2007, from the Will County Jail Web site. Cristopher Douglass Vaughn Date of birth: 9/26/74 711 Mansfield Court OswegoÊ IL Computer consultant Accused of killing wife and three children in June 2007

George Lenard, attorney for Christopher Vaughn, departs during lunch break during the the Christopher Vaughn murder trial at the Will County Courthouse Tuesday, August 28, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Christopher Vaughn's defense attorneys (from left to right) Jaya Varghese, Steven Whitmore and George Lenard depart the Will County Courthouse Thursday, August 23, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Prosecutors (from left to right) Chris Regis, Debbie Mills and Jim Long depart for the day for the Christopher Vaughn murder trial at the Will County Courthouse Wednesday, August 22, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Prosecutor Michael Fitzgerald (right) departs during lunch break for the Christopher Vaughn murder trial at the Will County Courthouse Wednesday, August 22, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

An Illinois State policeman escorts Christopher Vaughn into Will County Jail, Tuesday July 3, 2007, in Chicago. Vaughn is accused of killing his wife and three children. (AP Photo/Chicago Tribune, Abel Uribe) ** NO MAGS, NO SALES, NO INTERNET, NO TV, CHICAGO OUT **

A photo of Christopher Vaughn shown during the trial.

Photo of Christopher Vaughn shown during the trial.

The Vaughn family: Christopher, Kimberly and Abigayle (right) behind Cassandra and Blake.

Will County State's Attorney James Glasgow (center) stresses a point as prosecutors Chris Regis (left) and Jim Long (right) listen after a guilty verdict was announced in the Christopher Vaughn murder trial at the Will County Courthouse Thursday, Sept. 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Homer Glen resident Bob Trax, a juror in the Christopher Vaughn murder trial, speaks to the media after a guilty verdict was announced Thursday, Sept. 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Homer Glen resident Bob Trax (left), a juror in the Christopher Vaughn murder trial, addresses the media after a guilty verdict was announced Thursday, Sept. 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Jurors gather during an address to the media after a guilty verdict was announced in the Christopher Vaughn murder trial at the Will County Courthouse Thursday, Sept. 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Ken Kaupas (right), deputy chief with the Will County Sheriff's Office, addresses the media as jurors prepare to be interviewed after a guilty verdict was announced in the Christopher Vaughn murder trial at the Will County Courthouse Thursday, Sept. 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Charles Pelkie (left), communications director for the Will County State's Attorney, reads a statement from Kimberly Vaughn's family to the media after a guilty verdict was announced in the Christopher Vaughn murder trial at the Will County Courthouse Thursday, Sept. 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Prosecutor Chris Regis (second from left) poses for a photo with jurors at McBrody's after a guilty verdict was announced in the Christopher Vaughn murder trial Thursday, Sept. 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Officer Mark Soustek (left), Sgt. Steve Weiss (center) and Chief Jeff Wold (right), with the Channahon Police Department, depart shortly after the guilty verdict was announced in the Christopher Vaughn murder trial at the Will County Courthouse Thursday, Sept. 20, 2012, in Joliet. The trio were involved with the investigtion of the murders. | Matthew Grotto~Sun-Times Media

Kimberly Vaughn's twin sister Jennifer Ledbetter and her husband Wade leave the Will County Courthouse after Kimberly's husband Christopher Vaughn was found guilty of her murder and the murder of their three children. | Rich Hein~Sun-Times

Kimberly Vaughn's twin sister Jennifer Ledbetter and her husband Wade leave the Will County Courthouse after Kimberly's husband Christopher Vaughn was found guilty of her murder and the murder of their three children. | Rich Hein~Sun-Times

Kimberly Vaughn's parents Del (left) and Susan Phillips leave the Will County Courthouse with Detective Dave Margliano (right) after Christopher Vaughn was found guilty of her murder and the murder of their three children. | Rich Hein~Sun-Times

Kimberly Vaughn's parents Del (left) and Susan Phillips leave the Will County Courthouse with Detective Dave Margliano (right) after Christopher Vaughn was found guilty of her murder and the murder of their three children. | Rich Hein~Sun-Times

Kimberly Vaughn's parents Del (left) and Susan Phillips leave the Will County Courthouse with Detective Dave Margliano (right) after Christopher Vaughn was found guilty of her murder and the murder of their three children. | Rich Hein~Sun-Times

Will County State's Attorney James Glasgow (second from left) stresses a point to the media as prosecutors (from left to right) Chris Regis, Jim Long, Debbie Mills and Michael Fitzgerald stand nearby after a guilty verdict was announced in the Christopher Vaughn murder trial at the Will County Courthouse Thursday, Sept. 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Surrounded by members of the jury, Foreman Dan Lachat (at microphone) spoke to reporters outside the Will County Courthouse in Joliiet after they found Christopher Vaughn guilty of the murder of his wife Kimberly and their three children. | Rich Hein~Sun-Times

Members of the jury listened as Foreman Dan Lachat spoke to reporters outside the Will County Courthouse in Joliiet after they found Christopher Vaughn guilty of the murder of his wife Kimberly and their three children. | Rich Hein~Sun-Times

Members of the jury, including Foreman Dan Lachat (center) leave the Will County Courthouse in Joliiet after they found Christopher Vaughn guilty of the murder of his wife Kimberly and their three children. | Rich Hein~Sun-Times

Members of the jury pose for a photo with asst. state's atty. Chris Regis (second from left) at McBrody's bar in Joliiet after they found Christopher Vaughn guilty of the murder of his wife Kimberly and their three children. | Rich Hein~Sun-Times

Members of the jury, including juror Darrin Harres (center, laughing) have a drink at McBrody's bar in Joliiet after they found Christopher Vaughn guilty of the murder of his wife Kimberly and their three children. | Rich Hein~Sun-Times

Members of the jury, including juror Bob Trax (center, laughing) have a drink at McBrody's bar in Joliiet after they found Christopher Vaughn guilty of the murder of his wife Kimberly and their three children. | Rich Hein~Sun-Times

Members of the jury, including Jury Foreman Dan Lachat (left) have a drink at McBrody's bar in Joliiet after they found Christopher Vaughn guilty of the murder of his wife Kimberly and their three children. | Rich Hein~Sun-Times

Jury foreman Dan Lachat (at microphone) addresses the media as other jurors stand behind him after a guilty verdict was announced in the Christopher Vaughn murder trial at the Will County Courthouse Thursday, Sept. 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

A Sheriff's van leaves the Will County Courthouse to bring Christopher Vaughn back to jail after he was found guilty of the murder of his wife Kimberly and their three children. | Rich Hein~Sun-Times

Judge Daniel Rozak is seen at McBrody's after a guilty verdict was announced in the Christopher Vaughn murder trial Thursday, Sept. 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Defense attorney George Lenard waits to cross the street as he awaits a verdict in the Christopher Vaughn murder trial at the Will County Courthouse Thursday, Sept. 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Members of the jury listened as Foreman Dan Lachat spoke to reporters outside the Will County Courthouse in Joliiet after they found Christopher Vaughn guilty of the murder of his wife Kimberly and their three children. | Rich Hein~Sun-Times