GAINESVILLE, TX -- 58-year-old Johnny Lee Alexander and 58-year-old Matilda Alexander were arrested late friday in Chico, Texas in connection with the case.
They are both charged with injury to a child.
They are the parents of Johnny Earl Alexander who was arrested last Wednesday along with Nathan's mother, Catrina Maldonado, who are both charged with injury to a child.
Nathan was found not breathing at a home on Dover Drive the morning of September 24th.
Authorities say there were also burns on his body that had been there for nearly two weeks.
The exact cause of his death is still under investigation.
Police say more charges could follow in this case.