A fourth person, Chang Chih-hui (張志輝; Zhāng Zhìhuī, Chen's brother-in-law) was suspected of involvement, but his sentence was eventually overturned due to insufficient evidence.
Orang keempat, Chang Chih-hui (張志輝; Zhāng Zhìhuī, saudara ipar Chen) didakwa terlibat, namun hukumannya kemudian ditangguhkan karena kurangnya bukti.