A former judge, Luis José Sáenz de Tejada, was involved in a plot and had a history of violent behavior. He was previously convicted of psychological violence and making threats to his ex-partner. This individual had also made accusations against the judge who presided over his case, as well as against another magistrate.

His actions were linked to a larger scheme, although the full extent of his involvement is not clear. Further details about Luis José Sáenz de Tejada's role and the circumstances surrounding his actions can be found in El Mundo.