What is the significance of a person being niftar on Yom Kippur?
Answer:
The Gemara (Kesubos 103b) writes that dying on Yom Kippur is a good sign, because it implies dying without sin (the day of Yom Kippur atones for sin, providing the person repents). Conversely, dying on the eve of Yom Kippur is a bad sign, because it means that the person did not merit the atonement of Yom Kippur.