The mother watched and did nothing, because she was afraid he would beat her too. Some mother. If the girl survives, is able to walk, does not have permanent nerve damage, necrosis, sepsis, mrsa, or severe and chronic anxiety disorder, she should never live with that ‘mother’ ever again.
Her mom has an empty soul, if she is willing to tolerate such savage behavior just so she can tell people that she has a man.
Mama looks like she has a scar on her forehead. She knew what he was like and let him beat her child. She deserves just as much or more prison time.