Jason Payne, 38, of Quitman, is now charged with the murders of his wife, Nichole Payne, 35, and 16-year-old stepson, Austin Taylor Wages.
In December, it was reported Payne actually dialed 9-1-1 after discovering the bodies inside his Quitman home. The victims were in separate rooms with gunshot wounds.
At the time, authorities had not ruled Payne a suspect. His bonds are now set at $100,000 for each murder.