Taipei, May 22 (CNA) Police in Kaohsiung questioned a man Thursday for threatening online to carry out an attack in the southern city modeled on the Wednesday knife attack that killed four and injured 24 on the Taipei Metro. The man, surnamed Wang, was identified by police as the poster behind an ominous Facebook comment that read: "I would like to do this on the Kaohsiung metro too, but there are more people at Rueifong and Jinzuan night markets." Authorities located the man, who posted under a fake name, Thursday evening based on his IP address. A college dropout who has been unemployed since April, Wang was said to be sympathetic to Cheng Chieh, the 21-year-old arrested for Wednesday's bloody attack in Taipei. Wang is just one of several sympathizers who have made disturbing hints at copycat attacks. A vocational school student in the southern county of Chiayi surnamed Hsu wrote Wednesday night "Just don't pay attention to me, don't pay any attention to me! I think I'll go kill people at random on the metro, too." The widely shared Facebook post caught the attention of school administrators, who warned Hsu to delete the post Wednesday and explained the legal repercussions for his behavior to the student and his parents Thursday morning. The school said that Hsu's frustration after having messages sent to classmates ignored left him emotional, leading him to make the troubling post to Facebook. Police warned that posting comments such as Wang's and Hsu's could be enough to get Web users in trouble with the law, even as fan pages began cropping up celebrating the alleged perpetrator of the first indiscriminate killing on mass transit in Taiwan's history. The Taipei City Police Department said that comments voicing support for Cheng or indicating similar attacks may constitute endangerment of public safety by inciting fear of "injury to life, body, or property;" or inciting another to commit an offense, violate the law, or disobey a legal order, as listed in Article 151 and Article 153 of the Criminal Code. They called for Web users to think before posting.
Several fan groups supporting Cheng have reportedly been shut down by Facebook. (By Huang Kuo-fang, Chen Chao-fu, Liu Chien-pang and Kuo Chung-han)