A former inmate, surnamed Guo, was sentenced to death for the crime of intentional injury by a Beijing intermediate people's court. At about 3 pm on March 14, Guo quarreled with a 72-year-old man surnamed Duan. Duan reminded Guo, who took his mask off when waiting to pay in a supermarket in the city's Dongcheng district, to wear the mask and abide by the rules for epidemic control, according to a statement from the Beijing People's Procuratorate. Guo was unhappy with Duan and hit Duan's head and neck after pushing him on the ground. Duan was sent to a hospital, but died on March 20 from a head injury. Guo also injured two other staff members while trying to escape from the scene. Caixin media reported that Guo, a Beijing native, was sentenced to life in prison in February 2005 for killing his girlfriend. About two years later, his sentence was cut to 19 years and then he frequently got commutations, it said.