Charged have now been filed after a relative stopped a high school student's alleged elementary school shooting plot in the south suburbs, the Will County Sheriff's Office said.
The Justice Department on Friday charged a man who authorities say sold a gun to the Old Dominion University shooter.
The Department of Homeland Security identified the suspect as 41-year-old Ayman Mohamad Ghazali, a naturalized U.S. citizen from Lebanon.
The school shooting was allegedly committed by a former Army National Guardsman who was convicted of giving material support to ISIS, an FBI official told ABC News.
The filmmakers behind "All the Empty Rooms" don't want you to become numb to school shootings. Their Oscar-nominated short takes you inside the bedrooms of the children killed.
Colin Gray was found guilty of second-degree murder and manslaughter.