A man being sought in a Kansas woman’s death and her son’s attack has been arrested in Missouri.

A dispatcher confirmed that Charles Alfred Beck was arrested in Texas County in southern Missouri. Derby Police Chief Robert Lee says the arrest happened Sunday night, hours after his department responded to a disturbance at a home in the south-central Kansas town.

Lee says Beck is a suspect in the attack on the teen and a person of interest in the mother’s death. No charges have been filed, and no attorney is listed for Beck in online court records.

Lee says an autopsy will be performed Tuesday to determine how the mother died. The teen has been released from a hospital where he was treated for knife wounds to his neck.