The mother of a Georgia teenager charged with fatally shooting four people at his high school has been indicted in connection with an alleged domestic incident last year.

The Georgia Bureau of Investigation also arrested the teen's father, Colin Gray, on Sept. 5, and prosecutors have charged him with two counts of murder, four counts of involuntary manslaughter and eight counts of child cruelty.

The mother of a Georgia teenager charged with fatally shooting four people at his high school has been indicted in connection with an alleged domestic incident last year.

The indictment charging Marcee Gray stems from a domestic incident late last year, the Atlanta newspaper reported. It said a police incident report states Gray’s 74-year-old mother told authorities Nov. 4 that Gray had taken her phone, taped her to a chair and left her for nearly a full day.

The incident in which an elderly woman was taped to a chair is apparently unrelated to the fatal school shooting a teen and his father from the same family are charged in.

The teen accused of a deadly shooting at a high school in Georgia faces a long stretch in prison, as does his father, who is accused of supplying him with the gun. Now, in a disturbing footnote, the teen's mother also faces up to 20 years in prison for a separate incident in which she is accused of taping her mother to a chair and leaving her

The mother of accused Georgia high school shooter Colt Gray, was previously arrested on accusations of taping her elderly mother to a chair, stealing her phone and damaging her home, according to an incident report obtained by the Atlanta Journal Constitution.