 Garayo returned unexpectedly to Vitoria on September 21 and was arrested and taken to the local jail after being recognized on the street by Pinedo.There he was interrogated by Parada, but Garayo denied everything.He remained in jail for 12 days, this time being interrogated by warden José Fresco and key holder Juan Giménez, and only admitted guilt and began to describe the crimes after they appealed to his religious beliefs and convinced him that it was the only way to obtain Divine Mercy.