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Fingerprint helps police nab serial killer 31 years later

SHANGHAI police said they have tracked down a serial killer suspect who allegedly slain three people 31 years ago by means of electrocution. A fingerprint found at the scene led to his arrest.
Ai Hongguang allegedly used an electric wire to kill a sleeping guest in a Shanghai hotel in 1981 and robbed his belongings. He committed three similar robbery murders in Zhejiang and Jiangxi provinces and killed two more people, police said.
All the identification information Ai gave to the Shanghai hotel was false and a fingerprint he left on a ventilation duct became the only clue, said Wang Xueren, 77, a retired detective who handled the case at that time.
Ai's fingerprint popped an alert in April as police were sorting their fingerprint data and the impression collected 31 years ago pointed to Ai, now a migrant worker in Jiangxi Province.
"I was crazy back then," Ai said after confessing his crimes.
Ai, now in his 60s, said electric shock was often used by people in his hometown to catch fish.


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