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A country club has upped its reward to $10,000 for information leading to the arrest of the person who killed an 11-year-old baby-sitter last month.

Midlane Country Club, where the baby-sitter`s mother is a waitress, had been offering a $2,500 reward.

Holly Staker of Waukegan was raped and stabbed to death Aug. 17 while she was caring for two children. Police said they have no prime suspects in the case.