Police announced Wednesday that Lamar Graves, 32, of Bellwood, Illinois, with four counts of Aggravated Driving Under the Influence (DUI) involving death.
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A 6-year-old boy and 17-year-old boy were among those killed in the crash, according to officials.
Police said a blue Ford Fiesta pulled over on the side of Route 53 near Kirchoff Road just before midnight Saturday. Moments later, a 2018 Jeep Wrangler smashed into the back of the car.
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The impact of the crash sent both vehicles across all three lanes of traffic before coming to a stop on the left shoulder, state police said.
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The driver of the Fiesta and her three passengers were pronounced dead at the scene, according to ISP.
The victims were identified as 45-year old Stacy Harris, 17-year-old Jeremy Johnson, both of Schaumburg, and 47-year-old Herlanda Harris, of Chicago, according to the Cook County Medical Examiner's Office.
Graves was transported to a local area hospital with non-life-threatening injuries. He was taken into custody on Monday without incident and has been ordered held on a $450,000 bond.