Guilty verdict in Kim Potter manslaughter trial

White former Minnesota police officer convicted over shooting of unarmed black motorist Daunte Wright. Also: British researchers say people infected with omicron are up to 70% less likely to need hospital care but protection wanes 10 weeks after a vaccine booster and tributes are paid to one of the most distinctive voices in American literature, Joan Didion, who's died in New York at the age of 87.