A Will County jury could begin deliberating this afternoon after closing arguments scheduled for this morning in the murder trial of an Oswego man accused of fatally shooting his family in 2007.
The close of the Christopher Vaughn trial follows five weeks of testimony from dozens of witnesses, viewing horrific crime scene photos and watching hours of police interrogation videos.
Vaughn, 37, is charged with killing his wife and three children inside the Oswego family's Ford Expedition as they were on what Vaughn told them was an outing to a Springfield water park in 2007.
All four were fatally shot with a handgun after Vaughn pulled the SUV onto a frontage road off Interstate 55 near Channahon. His attorneys have argued that Vaughn's wife, Kimberly, shot her children and then killed herself.
She was shot once under the chin, and the 9mm handgun used in all the killings was found with the hammer cocked on the floor between her feet.
Prosecutors have said the family was killed as part of an "exit scenario" by an emotionless Vaughn, who spent thousands of dollars with strippers in the days before the slayings and spoke of escaping his suburban life and family for solitude in the Canadian wilderness.
The state's closing arguments will be handled by Will County Assistant State's Attorney Mike Fitzgerald with prosecutor Christopher Regis giving a final word to jurors before they begin deliberations later today.
Vaughn faces a life sentence if convicted.