Early within the morning on the twenty fourth, an 8-year-old and a 5-year-old sibling residing on this condominium in Mito City, Ibaraki Prefecture, had been discovered bleeding and fell down and died on the hospital to which they had been transported. Police arrested a 39-year-old mom for stabbing her 8-year-old brother to loss of life with a knife.
Source
8-year-old and 5-year-old siblings die Mother arrested on suspicion of homicide Ibaraki Mito | NHK
