Answer:
Tenorio thought that Ultima is responsible for the death of his daughter.
Step-by-step explanation:
Tenorio have just cause to seek revenge on Ultima because he thought that Ultima is responsible for the death of his daughter. Tenorio accuse Ultima of her murder and kill her as a witch. Tenorio claims that he found Ultima's bag of herbs under his daughter's bed which clearly shows that Ultima is responsible for his daughter's death while on the other hand, Tenorio killed Narciso because Tenorio find out that he is on his way to the Márez house to warn Ultima about the intensions of Tenorio.