Prosecutors Jim Long (left) and Chris Regis (right) depart after day one of the Christopher Vaughn murder trial concluded at the Will County Courthouse Monday, August 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Christopher Vaughn

Blake Vaughn, 8; Christopher Vaughn, 32; Cassandra Vaughn, 11; Kimberly Vaughn 34; and Abigayle Vaughn, 12; smile in their Oswego home. Kimberly Vaughn and the three children were found shot to death in the family SUV in 2007. | Submitted photo

An Illinois State Police officer escorts Christopher Vaughn into the Will County Jail on July 3, 2007.

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.

Kimberly Vaughn

A makeshift memorial to a mother and her three children rests in front of the family's home Friday, June 15, 2007, in Oswego. Kimberly Vaughn, 34, was found dead with her children Abigayle Elizabeth, 12, Cassandra, 11, and eight-year-old Blake Philip. The

Family members of Christopher Vaughn depart after day one of the Christopher Vaughn murder trial concluded at the Will County Courthouse Monday, August 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Family members of Christopher Vaughn depart after day one of the Christopher Vaughn murder trial concluded at the Will County Courthouse Monday, August 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

The vehicle believed to be transporting Christopher Vaughn departs after day one of the Christopher Vaughn murder trial concluded at the Will County Courthouse Monday, August 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Christopher Vaughn's defense team (from left to right) Jaya Varghese, Steven Whitemore and George Lenard depart after day one of the Christopher Vaughn murder trial concluded at the Will County Courthouse Monday, August 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Christopher Vaughn's attorney George Lenard departs after day one of the Christopher Vaughn murder trial concluded at the Will County Courthouse Monday, August 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Prosecutors Jim Long (left) and Chris Regis (right) depart after day one of the Christopher Vaughn murder trial concluded at the Will County Courthouse Monday, August 20, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Prosecutors Jim Long (left) and Chris Regis leave Monday after the first day of Christopher Vaughn's murder trial at the Will County Courthouse in Joliet. | Matthew Grotto~Sun-Times Media

Defense attorney George Lenard departs during lunch break during day two of the Christopher Vaughn murder trial at the Will County Courthouse Tuesday, August 21, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Defense attorney George Lenard departs during lunch break during day two of the Christopher Vaughn murder trial at the Will County Courthouse Tuesday, August 21, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Prosecutors Debbie Mills (left), Chris Regis (center) and Michael Fitzgerald (right) depart at the conclusion of day two of the Christopher Vaughn murder trial at the Will County Courthouse Tuesday, August 21, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Prosecutors Debbie Mills (left), Chris Regis (center), Michael Fitzgerald (second from right) and Jim Long (right) depart at the conclusion of day two of the Christopher Vaughn murder trial at the Will County Courthouse Tuesday, August 21, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Prosecutor Debbie Mills departs at the conclusion of day two of the Christopher Vaughn murder trial at the Will County Courthouse Tuesday, August 21, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Prosecutors including Michael Fitzgerald (center) depart at the conclusion of day two of the Christopher Vaughn murder trial at the Will County Courthouse Tuesday, August 21, 2012, in Joliet. | Matthew Grotto~Sun-Times Media

Prosecutor Michael Fitzgerald 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

Prosecutors Chris Regis (left) and Michael Fitzgerald (right) depart 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

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

Prosecutor Michael Fitzgerald 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