Answer:
In the graphic novel "Maus" by Art Spiegelman, Artie and Vladek do have a falling out towards the end of the book. However, it's important to clarify that the falling out is a fictionalized representation of their relationship, and some elements may be subjective or influenced by artistic interpretation.
Vladek, as a Holocaust survivor, is depicted as having gone through unimaginable hardships and losses during World War II. While Vladek's experiences include witnessing and being involved in tragic events, it is not explicitly stated in the book that he has directly murdered anyone. Vladek's survival instincts and the difficult choices he had to make in order to stay alive are portrayed in the narrative.
The confrontation at the end of the book, where Artie calls Vladek a "murderer," can be seen as a culmination of Artie's emotional turmoil and the strained dynamics between father and son. It represents the complex and conflicting emotions that arise from the intergenerational trauma of the Holocaust and the challenges of maintaining a relationship under such circumstances.