A Columbus couple has been indicted on involuntary manslaughter and child endangering charges in the drug overdose death of the couple's 11-month-old son. 32-year-old Denise Dickinson and 29-year-old Kyle Black are charged in the May death of Dominic Dickinson. It is not clear how the child ingested a fatal dose of so-called 'blue drop' heroin, which is a mixture of heroin and the powerful painkiller Fentanyl.