Sumon Zahid, a banker and son of martyred journalist Selina Parvin, has been found dead beside a railroad in Khilgaon Bagicha area in Dhaka, reports bdnews24.com.
Police believe Zahid died after being cut off by a running train, but the Ekattorer Ghatak Dalal Nirmul Committee has expressed doubt over the cause of his death.
Zahid, 57, had testified as the third prosecution witness against war criminals Chowdhury Mueen-Uddin and Ashrafuzzaman Khan.
Chowdhury Mueen-Uddin and Ashrafuzzaman Khan were sentenced to death and are now living in the UK.