Murder of Joseph Augustus Zarelli
Joseph Augustus Zarelli (January 13, 1953 – February 1957), previously known as the "Boy in the Box", the "Boy in a Box" or "America's Unknown Child", was an American four-year-old male whose nude, malnourished and beaten body was found on the side of Susquehanna Road, in Philadelphia, Pennsylvania, on February 25, 1957. Zarelli appeared to have been cleaned and freshly groomed, with a recent haircut and trimmed fingernails, although he had suffered extensive physical attacks prior to his death, with multiple bruises on his body.
Source: Wikipedia — Murder of Joseph Augustus Zarelli (CC BY-SA 4.0)