During her imprisonment, she was tortured and raped. According to one source, she was beaten with metal bars, sometimes while being strung up and used as a punching bag. On one occasion, Fan was kicked in the head around fifty times. Spices were rubbed into Fan's wounds, her legs and feet were burned with candle wax and hot plastic so that she was unable to walk, she was forced to consume human feces and urine, and she was forced to smile and say she enjoyed the beatings; if she refused, they subjected her to even harsher torture. This treatment eventually led to traumatic shock and ultimately death.
https://en.wikipedia.org/wiki/Hello_Kitty_murder_case