DNA test results show a Colorado prison inmate is not Prince’s son, a person who has seen a sealed document said Wednesday.

The finding means that Carlin Q. Williams is not entitled to inherit a fortune worth up to $300 million. The person who spoke to The Associated Press was not authorized to release the finding and therefore requested anonymity. TMZ, citing unnamed sources with direct knowledge of the case, first reported the DNA results.

Williams claimed that his mother had unprotected sex with Prince at a Kansas City, Missouri, hotel in 1976. Williams, a 39-year-old Kansas City man whose long criminal record includes drug and domestic violence charges, is serving nearly eight years in federal prison for unlawfully transporting a firearm in a stolen vehicle.

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