This is reported by ABC News.
"Robert (Bobby) Crimo has been charged with 21 counts of first-degree murder (three counts for each victim) and 48 counts of attempted murder," the statement said.
In addition, the suspect was charged with assault with a firearm under aggravating circumstances on 48 counts.
July 4 in the state of Illinois, there was a mass shooting during the parade in honor of the Independence Day of the United States.
According to the latest data, seven people were killed and 24 others were injured as a result of the incident.
Soon law enforcement officials detained the suspect in the shooting.