JOLIET, IL (KMOX) -Five years and two months after the bodies of his wife and their three children were found in their SUV off I-55 near Chicago, the murder trial of St. Charles County native Christopher Vaughn is scheduled to get underway today.

Jury selection begins this morning in Joliet, in a courtroom that, according to the Chicago Sun Times, is next door to the one where Drew Peterson is on trial.

Vaughn has been in jail since about a week after the June 2007 killings. He was arrested at a St. Charles County funeral home moments before services for his wife Kimberly, 12-year-old Abigayle, 11-year-old Cassandra and 8-year-old Blake.

Both Christopher and Kimberly grew up in St. Charles County. They lived in St. Peters before moving to Washington state and then the Chicago area.

Vaughn claims Kimberly shot the children and wounded him before killing herself. He claims she was upset because he had confessed to an affair and had told her two weeks earlier that he wanted a divorce.

Among the evidence prosecutors will present, is a magazine article they say Vaughn read about how to stage a murder to look like suicide. They also say he had gone to a shooting range the night before the killings, firing the gun that was found in the vehicle.

It’s expected to take five weeks for the prosecution to present its evidence.

The jury is scheduled to start hearing that evidence next Monday.