The victim was adopted , public records show . The child belonged to the caregiver , two news affiliates report . The boy ' n't face charges because he is younger than 10 . The video game maker denies any of its game might have involved killing .
The victim was 87 , public records show . The gun belonged to the caregiver , two CNN affiliates report . The boy wo n't face charges because he is younger than 10 . The video game maker rejects any suggestion its game might have sparked killing .