José Bretón came up with an alibi for the disappearance of his children and decided to pretend that he had lost them in a park. In order to be able to offer some information about the alleged disappearance, he carried out a kind of experiment with his nephews, the children of his sister Catalina Bretón and his brother-in-law José Ortega, on the morning of October 6, 2011, leaving them on their own for a few moments when he was taking them to school. Course of the events On October 7, 2011, José Bretón picked up his children in Huelva and went with them to Córdoba. They first went to his parents’ house and then to his sister’s house, where he left them. From there, he went to Las Quemadillas, his estate, to get the fuel he had bought that morning in Huelva out of his car’s boot and leave it there. In addition, Bretón suggested to his siblings to go in the afternoon of October 8 to the “City of Children” with their respective children in order to gain a better cover for the loss simulation of Ruth and José. However, they didn’t agree on the appointment completely. He told his mother that he wouldn’t be able to go to her house for lunch on that same day as he was going to meet some friends, which was untrue. In the morning of October 8, José Bretón and his children went to Catalina’s house, where Bretón stayed with them and his nephews until 1:30 pm, while his sister and brother-in-law were doing some shopping. When they returned, José Bretón's brother-in-law took him and his children to the grandparents’ house to pick up his car. Once there, José Bretón stopped by just long enough to make his family believe he was going to have lunch with some friends, which was false. When he left his parents’ house, José Bretón, along with his two children, drove to Las Quemadillas with his car. During the journey, or when he arrived at the estate, he supplied both Ruth and José with an undetermined number of the tranquillizers Motivan and Orfidal, in order to facilitate the children’s total drowsiness and/or death. Once they arrived at the estate, at about 1:48 pm of that day, José Bretón phoned his wife again, without being able to contact her, so he decided to continue carrying out his purpose.