A man suspected of playing an intermediary role in the murder of Taipei County councilor Wu Shan-jeou (吳善九) last month was nabbed yesterday, a day after the alleged killer committed suicide following a gun battle with police.
Wang Yao-kai (王耀凱), 24, was arrested in an apartment on Changchun Street, in Taipei's Wanhua District, early yesterday morning during a police raid.
Six other men and a woman were also arrested for abetting Wang.
Investigators said that Wang had acted as a liaison during Wu's assassination.
Wang is believed to have helped two other suspects steal two motorcycles, parts of which were used to modify the vehicle used by the alleged gunman, Lan Chia-wei (
Lan exchanged gunfire with police officers in a parking lot for more than 20 minutes late on Sunday night before turning his gun on himself.
Following Lan's death, police stepped up efforts to track down Wang by closely monitoring the behavior of his family members and analyzing Lan's cellphone records.
Police finally traced Wang to the apartment in Wanhua, adjacent to a police dormitory and a riot police station.
Taipei County Police Department Vice Commissioner Wang Yu-kang (
Wang Yao-kai told police that Lan was Wu's killer. Wang Yao-kai also told police that Wu Hsin-chung (
Banciao gangster Wu Hsin-chung is believed to have fled to China a couple of days after the May 23 assassination.
Police said they believed that Lan and Wang Yao-kai had yet to receive any money from the suspected mastermind.
Police brought Wang Yao-kai to a park in Banciao yesterday, where police found two pistols that he had hidden.
The Criminal Investigation Bureau later confirmed none of the pistols had been used in the killing.
The suspect said the pistol fired at the councilor had been hidden in Ilan County by Lan after Lan committed the crime, Wang Yu-kang said.
Police will begin looking for the pistol today.
Now that the key contact or "middleman" in the murder has been rounded up, police said they will use cross strait communication channels to request that their Chinese counterparts speed up efforts to track down the suspected mastermind Wu Hsin-chung.
Police said Wu Hsin-chung and some of his friends were involved in environmental clean-up businesses and that the murder was probably connected to those businesses.
Wu Shan-jeou, a People First Party member, often raised environmental issues at Taipei County Council meetings.