Protection? (Jason McCann)

Is it true that Jason McCann has a little sister he left behind ? Well it is and her name is Jesse McCann , she was ten when Jason left her . She is almost exactly like her older brother fearless ,strong , un able to to feel remorse ,causes fight and does drugs . This stared after he left . She blamed the cop (nick stokes ) that killed her brother Alex . She hates her life and works at party's for money . Then suddenly someone shows up again . Will he change her life .why does Jesse feel the need to be as good as her brother well because he made her a promise a promise to protect her .