Marissa Williams, 19, was not happy with her aunty for asking her to stop talking to strangers on Facebook and inviting them over to her home, where the aunt lived with her fiancé and son.
In retaliation, the niece blocked her aunt on Facebook.
Aunt created bogus Facebook profile for Tre 'Topdog' Ellis and started chatting with niece, who quickly invited the bogus man over to have sex with him if he agreed to pay her $50 cell phone bill.
The teenager supposedly asked her new friend to kidnap her and shoot her aunt, the woman's fiance, her son and the dog.
In late May, the unaware teenager asked Ellis to come and take her away, and to shoot her aunt if she tried to stop him. As the two continued exchanging messages online, Williams' alleged murder-for-hire plot became ever more elaborate and brutal.
Documents indicate that the teenager instructed her aunt pretending to be a young man to enter the woman's bedroom and kill her and her fiance.
Ms Williams also allegedly asked 'Topdog' to gun down her cousin and the family dog while she was busy loading her belongings into the getaway car.
Williams' concerned aunt eventually contacted authorities for help.
When deputies responded to the family’s home in Tuscaloosa and interviewed Williams, the teen confessed and apologized, but insisted that she did not really intend to have anyone killed.