As he walked along the beach near the war party, they speared him and cut off his head.
In December 1566, after two Spaniards were killed and three others nearly died inside the fort after drinking poisoned wine purchased from Sugbu/Cebu wine-sellers, Legazpi sent for Rajah Tupas and his fellow datus, alleging that some of them were behind the killings.
The chiefs protested their innocence, and Legazpi told them that their guilt could only be absolved by handing over the culprits.
Dagami was condemned to be drawn and quartered the next day in the place where Pedro de Arana had been killed.
After this was carried out, Tupas lauded Dagami as having been among the proudest in the islands, and said that when they were thinking of making peace with the Spaniards in 1565 had advised him not to make peace, had hindered him from doing that and that after the signing of the Treaty of Cebu, Dagami continued to be rebellious against the Spaniards and in favor of revolts and war to gain independence.