Challenging the Appellate Division verdict of upholding the death penalty for crimes against humanity in 197, BNP leader Salauddin Quader Chowdhury will file a petition to review the verdict.SQ’s lawyer Khandaker Mahbub Hossain told the journalist in a reaction to the verdict that they are preparing for the petition.The Appellate Division of the Supreme Court on Wednesday morning upheld the death sentence to BNP leader, Salauddin Quader Chowdhury, in charge of war crimes during the Liberation War of 1971.