As there was no direct evidence, human-rights groups suspected that the conviction was based solely on Wang's confession--a confession that was very likely extracted through torture.
由於缺乏直接證據，人權團體質疑，僅憑王文孝的供詞自白，難道就足以判定 3 人死刑？何況這份供詞極有可能在刑求下取得。