On 20 May, a group of four terrorists, disguised as nurses, entered the home of Javier de Ybarra y Bergé in the Neguri district of Guecho and kidnapped him. The kidnappers demanded a ransom of one billion pesetas, which the family was unable to raise. Ybarra was found dead on 22 June that year near the Rekarte farmhouse, a mountain hut in Barazar.
His body showed clear signs of the savage treatment he had received. He had lost 22 kilos in weight and the walls of his intestines had stuck together, indicating that he had been given no food. Remains of grass were found in his stomach. His body was covered in sores and all the clothes smelled of urine and excrement, suggesting that he had spent the entire time lying down or inside a sack, unable to move.