On 10 March 2003, officers of the
Singapore Police Force responded to a report that a woman had fallen to her death from her flat at
Choa Chu Kang. After they arrived at the scene, the police inquired a 14-year-old boy who was crying next to the corpse of a woman at the
void deck. The teenager, who introduced himself as the son of the deceased woman, told police that his mother, later identified as 32-year-old Diana Teo Siew Peng, was murdered by her boyfriend, who was on the tenth floor of his mother's flat. On 26 March 2003, Lee was brought back to court to face another ten charges, which included Lee resisting arrest and hitting the police officers and Lee allegedly harassing and assaulting Teo before he murdered her. Prior to the murder, both Lee and Teo were already dating for more than a year, and they first met and befriend each other in 1993, ten years before the killing. At the time of the alleged murder, Teo, who had one younger brother and two younger sisters, was a divorcee with one teenage son (born in May 1988). Teo's former father-in-law stated that his son married Teo while he was still living in a boy's home, and Teo was still 16 years old and pregnant with their son at that time; the marriage ended with a divorce in 1995 due to her husband's imprisonment for a drug offence (he was released in 1999). On the other hand, Lee himself was married twice with three children. He first married in 1986 and had one son (aged 16 in 2003) before he divorced in 1995. A year later, at
Kuala Lumpur, Malaysia, Lee married an
Indonesian woman in 1996 and had two more children - a six-year-old son and a four-year-old daughter, and he converted himself to
Islam, leading to him changing his name from Lee Cheng Thiam to Harith Gary Lee. However, at the time of the killing, Lee was estranged from his second wife. Lee was described as a quiet man by Teo's family and friends, which was a contrast to Teo's outgoing and bright personality. The case was widely covered in the media due to the nature of the killing being a possible crime of passion, and since the occurrence of Teo's death, there were more cases of people charged with killing their partners over strained romantic relationships within the same month. Residents living nearby Teo's flat were also shocked to hear that such a brutal murder was blatantly committed nearby their homes. ==Trial and proceedings==