Anyone can be affected by an act of violence, the physical victim/s, bystanders, friends, family, a community, a nation, anyone. This is because violence is an emotional as well as a physical act and as human beings we can feel empathy and sympathy which means that a broad spectrum of people can essentially become additional victims.
To keep his chin up and to continue to work on his grades in order to bring happiness to the house. Seeking a relative or close friend for support would also be the best option in pushing through these tough times.