elkins' sister sabrina elkins and their mother ditched the .22 caliber revolver in this marsh miles away from the crime scene. tests will determine if a gun pulled from the marsh this week was the gun used to kill little antonio. >> i had to watch my baby die and i want him to die. a life for a life. >> reporter: that's not possible under georgia law. elkins and lang are both under 18. if convicted of the new charges these boys could spend the rest of their lives in prison. as part of the indictment, demarqueis elkins was also charged with attempted armed robbery. the police say this gun that they believe was used to kill little antonio was also used in an attempt to rob a man a few days before. they're also exploring the possibility that the gun was used in other crimes, suzanne. >> all right. victor, thank you. appreciate the update. coming up some restaurants billing their food as healthy