An Oxford University employee and a US professor have been arrested for murder. Andrew Warren and Wyndham Lathem were arrested in San Francisco and Oakland. They are accused of fatally stabbing 26-year-old Trenton Cornell-Duranleau in Lathem's apartment. Warren and Lathem were caught on CCTV leaving the building in Chicago that night. Lathem and the victim knew each other but it is unclear in what capacity.