i think lives...because then you can tell the readers about his guilt, emotions, but also you have answer that based on the relationship between the father and son.....such as if the father had to kill the son out of pressure or by accident [he may feel he needs to kill himself to make things rite] then he may kill himself but if the father killed the son out b/c he wanted him out of the way, etc. then he lives.....reallly based on how you tell it