The confessions provided during questioning by Wang Wen-hsiao, Wang Wen-chung, Su Chien-ho, Liu Bing-lang, and Chuang Lin-hsun were riddled with inconsistencies, and no corroborating evidence was ever found.
對照被告王文孝、王文忠、蘇建和、劉秉郎、莊林勳五人在警訊偵察所供出的犯罪情節，非但差異極大且矛盾百出，並有缺乏佐證等重大疑點。