A judge has ruled that a New Mexico man who shot and killed his parents and three young siblings when he was a teenager will be sentenced as an adult.

The ruling in Nehemiah Griego’s case was handed down Friday — nearly four years after he pleaded guilty to second-degree murder and child abuse resulting in death in the January 2013 shootings at his family’s home south of Albuquerque.

Judge Alisa Hart recently took Griego’s case after a judge who had been overseeing it and monitoring his rehabilitation for years recused himself.

Hart found Griego was not amenable for treatment as a child in state facilities, a factor in her decision whether to sentence him as a juvenile or adult.