nRunning Toward Justice. (Part 1)

When both of her parents were shot 16 year old Jade is on her own to take care of her 3 year old sister Gianna while still in school and working Jade is on a mission only she can complete to get real justice but Jade knows little about this mysterious killer. what Jade really wants to know is who did this and why. is there to many pieces in this puzzle for Jade to put together?