一位 22 歲的青年在捷運上拿著刀，一分多鐘內造成 4 人死亡、22 人受傷。這位青年當下期待自己像美劇的劇情般，被警察當場槍擊。
與鄭捷首次見面的那天，黃致豪以為自己會看到一個怪物，但他看到的是一個略帶羞澀的青年。黃致豪不斷的和鄭捷討論辯護策略，帶他看一張張受害者的照片，希望他能了解，他的所作所為，對受害者和社會大眾造成多大的傷害。鄭捷的想法漸漸改變，並告訴他：「如果早一點遇到你們的話，我可能不會做這些事情。」
曾經，這些死刑犯都是在草原上奔跑的快樂兒童，黃致豪盼望透過司法程序，了解這些死刑犯歷經過什麼樣的成長環境，才會犯下罪刑。
As a death penalty defense attorney, Leon Huang has represented a number of high profile clients, including a 22-year-old assailant behind the 2014 Taipei Metro mass stabbing spree which left four dead and 22 injured. This particular case became such a nationwide sensation that the justice system quickly carried out the death sentence while disregarding problems during the investigation or trial process. This talk is Leon's chronicle of how the case unfolded, and his personal struggles with identifying root causes and possible preventions to capital offenses. ------
黃致豪長年投身司法與社會改革(包括司改會、冤獄平反、廢死等各項專案)、社會重大矚目案件辯護與協助，並致力推動司法行為科學在實務工作中的應用。
他現任致策國際法律事務所主持律師、臺灣刑事辯護律師協會執行長，同時也曾擔任鄭捷辯護律師。
Leon Huang is a practicing attorney-at-law with focuses on IP, International Law, and Criminal Defense. He is one of the very few pioneering practitioners in the field of forensic behavioral science in Taiwan, as he constantly applies relevant psychology studies and scientific principles thereof in his legal practice for the advancement of both psychology and law. In addition, he is a proponent of capital defense, major crimes defense, effective counsel, and judicial reform in Taiwan.
Leon trains lawyers and law students in the Attorneys Academy of the Taiwan Bar Association, the law school of the China University of Political Science and Law, and other initiatives relevant to forensic psychology, evidence, and trial advocacy. He is also a certified trial advocacy instructor at the National Institute for Trial Advocacy. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at www.ted.com/tedx