Willie May Thornton, 40, has also been charged with Homicide in the September 13 killing of Phoung Nguyen Troung.
Her son, Dontonio Diaz Thornton, 19, was charged Friday night with Homicide in the death of the 50-year-old store owner. Troung was found deceased behind the counter of his business, the T&M Food Mart on West Michigan Avenue, with an apparent gunshot wound. Forensic evidence and information from the public led to the arrests.
