USA Today reports that an 11-year-old committed suicide after fatally shooting his grandmother over cleaning his bedroom. In Phoenix, Arizona, the boy refused to clean his room on Saturday before shooting his grandmother, then turning the gun on himself.

The grandmother, Yvonne Woodard, 65, lived with her husband and their grandson in the suburb of Litchfield Park. The grandfather told police the boy had been told to clean his room and he didn’t want to do it.

The couple was sitting on their couch watching TV when the 11-year-old approached Yvonne from the back and shot her in the head. Her husband ran after the boy when he heard the gunshots as the boy shot himself. The grandfather then returned to his wife to try to help her.

Investigators say the gun used in the shootings did belong to the grandfather. They have also not found anything indicating the boy had threatened to hurt himself or anyone else, and there was no reason to believe he was at risk.

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