We will take the harshest of measures in order that all Filipino interests inside and outside the Philippines will be subject to destruction....Our measures will include assassinating prominent figures, foremost among them the Filipino President (RAMOS)....We also have the ability to use chemicals and poisonous gas against vital institutions, residential populations, and drinking water sources...
كانت كلمات يوسف عامرة بالغضب نتيجة لاكتشاف خليته التفجيرية في مانيلا قبل شهر من كتابته لتلك الرسالة، حيث أقسم على ما يلي: