Law enforcement officers investigate the scene after the shooting on July 4.
Mandatory Credit: Tannen Maury/EPA-EFE/Shutterstock
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'People just falling and falling': Witnesses describe terror at Illinois parade shooting
Zoe Pawelczak's dad thought the repetitive pops ringing out at Highland Park's Fourth of July parade Monday morning were part of the show, she says. But she felt something was off.
