How Ziaul Ahsan is the mastermind of the disappearance-murder

During the 15 years of the previous Awami government, dismissed Major General Ziaul Ahsan was responsible for various misdeeds. He is known as the 'mastermind' of hundreds of murders and disappearances. He became a major general in a short time. It is alleged that he got promoted quickly due to the killing and disappearance of people of opposing views.