Rio's daughter

y/n finds herself at the age of 15 looking after her brother.
Her mother died in a shooting and her dad has no idea he has children.
y/n is troubled and struggles with her anger she quit school to get a job so her brother has somewhere to live.
what happens when someone she knows robs the supermarket she works in and rio finds out he has children.

Let's just say he doesn't have another child like in the show.