Lee Kim Lai (1960 – 25 April 1978; 李金来 Lǐ Jīnlái) was a police officer who was murdered on 25 April 1978 for his service revolver by three men. A serving Police National Serviceman, he was performing sentry duty at the Police Reserve Unit 1 base of the Singapore Police Force at Mount Vernon when he was abducted from the front gate and forced into a taxi. His body was later found with multiple stab wounds in the abandoned taxi, the driver of which was also killed. Background Ong Chin Hock (王进福 Wáng Jìnfú), Yeo Ching Boon (杨青文 Yáng Qīngwén) and Ong Hwee Kuan (王慧君 Wáng Huìjūn), all aged 20, were childhood friends since their days in Tu Li Primary School (土里小学). The former left school in primary three, and began working three jobs: an odd job labourer, a hawker assistant and a construction worker, until his enlistment for National Service in the army. Yeo was expelled from Tu Li Secondary School when he was in Secondary Three after a fight and worked as a stock handler for three months before he was again sacked for fighting. He then worked as a fitter and a wireman before he was enlisted with the Singapore Police Force for his National Service, where he was posted to the Police Reserve Unit 1 base. The last of the three, a school drop-out at age 12 after repeatedly failing his Entrance Examination in 1972, had worked as a painter and an odd job labourer. He has been involved in petty crimes with other members of the "18 group" of Sio Kun Tong, a secret society. He was placed under police supervision for a year in February 1974 for involvement with the group and was jailed for two years in 1973 for consorting with another police supervisee. He was subsequently under police supervision for another year upon his release. In 1976, he robbed a Malay man for his watch and cash with Chin Hock and another friend. In April 1977, he was detained in the Telok Pakau Drug Rebabilitation Centre for six months for smoking heroin. The second-oldest child in a family of five siblings, Lee Kim Lai, aged 18, was attached to the Police Reserve Unit 1 at Mount Vernon for his National Service. The plot The plot to commit robbery was first proposed by Ong Hwee Kuan on the night of 21 April 1978