According to former FBI agent Ted Gunderson, singer-turned-politician Sonny Bono was clubbed to death by a hitman hired by several top U.S. officials. Gunderson claims that the officials were linked to an international drug and weapon ring and wanted Bono, Cher’s ex-husband, dead as they feared he was about to expose them. He alleges that Bono was ambushed and beaten to death.

In 1998, 62-year-old Bono died in a “skiing accident” in Nevada. His death is officially recorded as an accident. Bono’s autopsy said he died of injuries sustained after crashing into a tree while skiing at the Heavenly Ski Resort.

“It’s nonsense for anyone to now try to suggest that Bono died after crashing into a tree. There’s zero evidence in this autopsy report…to show such an accident happened,” Gunderson says. “Instead, there’s powerful proof he was assassinated.”

Gunderson’s claims are reportedly backed by several top forensic experts.