A Virginia woman has been charged with murdering her son whose remains were allegedly found in a car she was driving more than 10 years after he went missing. Tonya Slaton, 45, is charged with second degree murder in the death of Quincy Davis, according to an indictment obtained by PEOPLE. The indictment charges Slaton with killing her son between July 24, 2004, and July 24, 2005. His remains were discovered in June 2015.
Quincy would have been 14 or 15 at the time of his death. The paper also reports that the cause and manner of his death are undetermined, and that he was never reported missing.
Last June, a Virginia state trooper stopped a car Slaton was driving with expired license plates, according to a statement by the state police. During the stop, the trooper allegedly discovered human remains in the car and subsequently charged Slaton with concealment of a dead body, the statement says.
According to an affidavit, the trooper discovered a trash bag in the trunk and that there "was a strong odor of rotting flesh permeating from the bag."
According to online court records, Slaton pleaded guilty in 2007 to shooting into an occupied dwelling and attempted maiming. WTVR reports that Slaton fired four shots through her boyfriend's front door after becoming angry when he tried to break up with her, and that she served nearly four years of a 15-year prison sentence.
Slaton was also convicted in 1997 of misdemeanor assault and battery for injuring Quincy when he was six years old, according to the Virginia Pilot. She was sentenced to no jail time on the condition of good behavior, the paper reports.
Slaton is due back in court on February 25, according to court records.