Logan Goodall died last September in his home in Putnam County. His death helped inspire lawmakers in West Virginia to establish harsher penalties for sex offenders.
Wednesday, a grand jury in Putnam County indicted Merrifield in Goodall's death. Merrifield was dating Logan's mother, Pepper Eren, and was watching him at the time of his death. The indictment also includes a sexual abuse and sexual assault charge against Merrifield.
Earlier this week, Pepper Eren pleaded guilty to child neglect in the death of her son. She has agreed to testify against Merrifield.
Merrifield is due in court next Friday.