But then Pizarro decided to have him executed because he feared he could be freed by an Inca General. Pizarro staged a mock trial and found Atahuallpa guilty of revolting against the Spanish and murdering Huáscar, his own brother. Atahuallpa was sentenced to execution by burning. He was horrified, since the Inca believed that the soul would not be able to go on to the afterlife if the body were burned. Friar Vicente de Valverde, who had earlier offered the Bible to Atahuallpa, intervened again, telling Atahuallpa that if he agreed to convert to Christianity he would convince the rest to commute the sentence. Atahualpa agreed to be baptized into the Christian faith. He was given the name Juan Santos Atahualpa and then was strangled with a garrote instead of being burned. Atahuallpa died on August 29, 1533.