A Mississippi man who died in April left more than $642,000 to the Harrison County School District.

News outlets report the donation by 84-year-old Darrell Saucier is the largest in the district’s 63-year history. Superintendent Roy Gill says there isn’t yet a concrete plan on how the money will be used.

He says the money has been deposited in a separate district bank account and the public will be able to track how it’s spent.

Saucier had no immediate family when he died, and court records say he’s survived by nieces and nephews. The district’s public relations specialist, Trang Pham-Bui, says the district doesn’t know much about Saucier. Gill says he has been trying to track down more information.