A mum murdered her boyfriend’s eight-year-old daughter by kicking her until her intestines ripped and she could no longer walk.
Cynthia Baker, 41, subjected Rica Roundtree to "wanton cruelty" and abuse, a court heard.
The evil mum battered little Rica at her home in Illinois, America, for "entertainment" and treated her as a "punching bag".
Sickening evidence from court heard how Rica suffered intestinal perforation up to five days before she was rushed to a hospital, where she died on January 26.
In the days leading to her death, Rica had vomited, could no longer see and almost fell down a set of stairs.
Forensic pathologist Dr John Denton found the youngster had more than 50 injuries across he body.
Following Baker's arrest, detectives found harrowing footage of three attacks she had inflicted on Rica during in 2018.
The abuse included hitting parts of her body, hitting her head against walls and kneeing her in the back.
One clip appeared to show Baker using a twisted 'discipline' method on Rica - who was seen naked while struggling to hold two cans in her arms, which are stretched far apart.
Baker, who was found guilty of first degree murder, could be heard mocking the girl and telling her to keep her arms straight.
She says: “Cold, aren’t you? Good,” and later asked Rica if she should put a collar on her, reports Pantagraph.
The court heard how the abuse was a "normal" part of Rica's life.
Assistant State's Attorney Erika Reynolds said: "For most, it’s unthinkable but for Rica, it was normal.
"In (Baker's home), Rica was treated as less than as this defendant’s punching bag and her pain served as entertainment for the entire family,”
"Rica's life didn't matter to this defendant, but it matters in this courtroom."
Baker was also convicted of aggravated battery, three counts of domestic battery and endangering the life of a child.
Judge Casey Costigan stated that her crimes were "accompanied by exceptionally brutal or heinous behavior indicative of wanton cruelty."
