A six-year-old girl was forced to stand in the snow for hours holding a demeaning sign telling passers-by she wanted to "stab and kill my brother" by her cruel dad and mum.

Stunned drivers called the police after spotting the young girl standing outside a home in Logansport, Indiana, clutching a large piece of cardboard. On it, written in blue inked handwriting, was: "I want to stab and kill my brother, I even take an antipsychotic. If you need to give pity, then give it to the victims."