Answer and Explanation:
In the story of Romulus and Remus, Romulus kills Remus.
According to Roman mythology, Romulus and Remus were twin brothers who were abandoned as infants and raised by a she-wolf. As they grew older, they decided to establish a city, but they disagreed on where to build it.
Remus favored the Aventine Hill, while Romulus preferred the Palatine Hill. To determine the rightful ruler, they agreed to observe signs from the gods. Remus saw six vultures first, indicating the favor of the gods, but then Romulus saw twelve vultures, claiming the divine approval for his chosen hill.
This disagreement escalated into a fight between the brothers, and in the heat of the moment, Romulus killed Remus. This event led to Romulus becoming the sole founder and ruler of the city, which he named Rome after himself.
Therefore, in the story of Romulus and Remus, Romulus kills Remus due to their disagreement over the location of their city.