September: Five years for two teenagers who killed a 13-year-old boy by twisting wire round his neck, wrist and ankles. Acting Chief Justice Power said the appalling childhoods Li Ying-keun, 17, and Cheng Wai-lun, 18, had apparently suffered was no excuse for them to kill Hung Siu-chung. July: Five years for waiter Chan Hung-hing, 44, who threw his wife over a balcony at Tsim Sha Tsui's New World Centre after injecting heroin into his groin. May: One year and 18 months respectively for two technicians convicted in connection with the North Point lift disaster in which 12 workers were killed, including a 16-year-old. The men were supposed to have ensured the lift was operating safely. March: Ten years for Lee Sau-ping, 28, who drowned her five-year-old daughter, who was under the protection of the Social Welfare Department when her mother took her from a children's home. Lee lured her daughter, Man-yi, into a nylon bag which she sealed and dumped into the sea at Repulse Bay. Her body was found nine days later at Aberdeen Boat Club pier. January: Twenty years for Chu Po-kwong, 33, for the deaths of 12 Hongkong Bank employees in an arson attack on the Shekkipmei branch.