A Pan-African flag is draped from a vehicle in a parking lot in Willowbrook, Illinois.Brian Cassella/Tribune News Service via Getty Images At least 22 people were hurt and one was killed in a Sunday mass shooting at a Juneteenth event. An unknown number of suspects opened fire in a strip mall parking lot in Willowbrook, Illinois. The search for suspects is ongoing, police officials said. At least 22 people were injured and one is dead after a shooter opened fire Sunday at a Juneteenth celebration in suburban Chicago, The New York Times reported.Shortly after midnight local time, an unknown number of suspects fired multiple rounds from multiple weapons into a crowd in a parking lot in Willowbrook, Illinois, about 21 miles outside of Chicago, police officials said in a news release.