A fundraiser launched online to help a two-year-old child whose parents died Monday in the shooting near Chicago exceeded $2.5 million on Wednesday, according to the site.

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Irina and Kevin McCarthy, 35 and 37, were attending the Fourth of July parade in Highland Park when they were shot by a sniper on the roof of a business.

In a panic, residents picked up little Aiden and brought him to safety before launching a search warrant to find his loved ones.

He was later picked up by his grandparents, according to authorities who confirmed on Tuesday that both his parents were among the seven people killed.

Robert Crimo, 21, opened fire indiscriminately on the crowd with a semi-automatic rifle, also injuring more than thirty.

Arrested on Monday after a run of several hours, he was charged with murder and faces life imprisonment.

The amount of the kitty created Tuesday on the participative site GoFundMe had been placed at 500,000 dollars. Wednesday afternoon, it exceeded the 2.5 million dollars paid by more than 46,000 donors.

One of them is billionaire philanthropist William Ackman, who donated $18,000, according to the site. On the day of the tragedy, he had denounced on his Twitter account the inaction of the authorities in the face of the shootings and on Tuesday he had retweeted a photo of the little boy.

“Aiden will be cared for by his loving family and he will have a long way to go to heal, find stability and live as an orphan,” wrote the organizer of this pot, Irini Colon, assuring have had the approval of the child's family.