Today’s world news spans justice, tragedy, conflict and discovery. In the United States, South Carolina’s top court threw out Alex Murdaugh’s murder convictions and ordered a new trial, ruling that improper comments to jurors fatally undermined the fairness of the original case. In Britain, police in Brighton are investigating after three women’s bodies were recovered from the sea, with authorities still working to establish their identities and what happened. Travel disruption is also rippling outward: Air India is cutting international services as conflict in West Asia, fuel costs and airspace restrictions squeeze operations, while in Bordeaux French officials have kept more than 1,700 people aboard a British cruise ship after a gastroenteritis outbreak. And from Siberia comes a striking glimpse into deep prehistory, where researchers say a 59,000-year-old Neanderthal tooth bears evidence of the earliest known dental treatment.