Complex sentence: When she is told that she must kill somebody to leave, Beth hesitates for a moment until Stuart insults her, and she brutally cuts off Stuart's genitals and throws them to the guard dogs, leaving him to bleed to death.
Split into simpler sentences: When she is told that she must kill somebody to leave, Beth suddenly turns into a stone cold killer. She cuts off Stuart's genitals and throws them to the guard dogs, leaving him to bleed to death.