On 5 January 1994 at Teban Gardens, Singapore, 15-year-old Chia Lap Lai (Chinese: 谢立来; pinyin: Xiè Lìlái) was killed by a group of three youths in a gang-related attack.

Ng Beng Kiat, Allan Ong Chee Hoe and Kyaneth Soo Kian Fong were members of Tiong Meng Kok.

[3] On the evening of 5 January 1994 at about 9.30 pm, several members of Tiong Meng Kok were playing basketball in Teban Gardens when they saw Chia walking alone to Block 34 where he lived.

The prosecution was led by Deputy Public Prosecutor (DPP) Lee Sing Lit, Ng was represented by defence lawyer Peter Yap, and the trial judge was Justice T. S. Sinnathuray.

Justice Sinnathuray rejected the request, saying that although he could sympathise with Ng that he had no family members present in court, he had already arrived at his verdict and there was no purpose in delaying it.

While delivering his judgement, the judge stated that the attack on Chia was premeditated and the duo, together with Ng, had carried it out with ill-feeling and vindictiveness, citing the viciousness of the crime.

President Tony Tan, acting on the advice of the Cabinet, approved their appeals on account of their good behaviour in prison and allowed the two of them to regain their freedom and rejoin society.

[9] In an interview with a Chinese-language newspaper in 2018, Soo mentioned that during his first four years in prison, he racked up numerous bad records by fighting, swearing and smoking, and was put in solitary confinement many times.

While speaking about his past, he hoped that society would be more tolerating of ex-offenders, citing that even though some may be recalcitrant and persist with their criminal ways, there are others who genuinely want to reform and become better persons.