In a shocking incident, a 12-year-old girl allegedly killed a four-year-old boy in an act of revenge after being scolded over a chocolate. Mandsaur Superintendent of Police Vinod Meena told PTI Videos that the shocking incident took place on October 24 at Shamgarh in the district.After the girl allegedly admitted to the crime, she was produced before a court, which sent her to a juvenile home.