After they uncovered the identity of Umaisyah's remains, the police found that her parents, who used to reside in the flat, were likely responsible for killing the girl five years before in March 2014.

The cause of Umaisyah's death was due to her father slapping her on the face twice or thrice with great force, which resulted in a traumatic brain injury that led to a brain seizure, causing Umaisyah to die and her parents, who did not seek medical help for her, burnt the body to avoid detection of their daughter's murder and abuse and the father's drug use.

Upon the discovery of the girl's death in 2019, Umaisyah's parents, who themselves were in prison serving sentences or pending trial for unrelated offences since 2018, were both charged with murder.

[3] On 10 September 2019, during one of the visitations by a friend who was taking care of Umaisyah's uncle, he opened a box inside the house out of curiosity and discovered the charred body of a child.

The neighbours called the police,[4][5] who arrived at the flat and impounded the metal cooking pot and the human remains as evidence, as they classified the case as one of unnatural death.

[12] On 9 September 2019, the day before the girl's corpse was found, Umaisyah's mother was sentenced to five years and two months' imprisonment for a total of four charges of drug-related offences and theft.

The parents and the girl were not named due to a court gag order issued to protect the identity of her surviving siblings.

[17][18] Umaisyah's 31-year-old father, who was awaiting trial for the other three charges, was given a remand order on 24 September 2019 to undergo psychiatric evaluation for killing his daughter.

[19][20][21] Umaisyah's 30-year-old mother, who had already begun serving her sentence of five years and two months, was ordered on 1 October 2019 by the district judge to be remanded in Changi Prison's Complex Medical Centre for three weeks for psychiatric observation.

[30][31][32] She, together with her husband, were also charged with 12 counts of having abused the victim and their other surviving children, perverting the course of justice, as well as giving false information to the social welfare agencies in relation to the girl's whereabouts.

After her birth during that same year, Umaisyah was sent away in November 2011 to undergo foster care at the age of three or four months, after her father was imprisoned at a drug rehabilitation centre and her mother was deemed unsuitable as a caretaker of the girl.

Umaisyah's father was subsequently jailed at a drug rehabilitation centre for the second time, but he absconded in February 2018 before completing his sentence and he went on to commit an act of rioting while on the run, before he was arrested in April 2018 for the offence, and he even continued to consume methamphetamine while out on bail for the rioting charge, resulting in his arrest and remand in prison on 19 June 2018.

Dr Chui also said that the damage caused by the fire and the advanced state of decomposition rendered him incapable of finding any external injury on Umaisyah.

[48] On the other hand, Umaisyah's father's defence counsel, led by Ramesh Tiwary, requested for a sentence lower than what the prosecution argued for on account that the killing was unpremeditated and done out of a spontaneous spur of rage and stated that the accused accepted his responsibility for what happened.

During the court hearing, Justice Aedit Abdullah, who was the presiding judge of Umaisyah's father's trial, reportedly inquired the prosecution on why the case itself took five years since the accused's arrest in 2018 to arrive at the courts for trial hearing, and the prosecution replied that extensive investigations had to be taken due to the severe state of decomposition and damage to the girl's corpse, which hindered the forensic experts' process in identifying the cause of death and reconstruct the events.

[61] The Chin Swee Road child murder shocked the whole of Singapore when it first came to light in September 2019, due to the unusual circumstances of the case.

Several people went to the flat to place toys and gifts outside, to pay respects and show sympathy to the deceased victim.

[64] There were intentions by the government to strengthen network of agencies and community organisations to provide better care for welfare of children without stable caregivers.

She wrote about the difficulty for people to detect the warning signs of child abuse (which is a persistent social issue worldwide and happens behind closed doors) and the challenges of welfare groups to uncover these cases (whether or not they ended with the child's death) it was also the collective responsibility of society to detect these cases and ensure the safeguard of the children's welfare.

Jenner ended her writing of the article by stating that the case of Umaisyah should highlight the need for a more vigilant community and remind people of the importance of protecting children from abuse.

[70] A trial date was not yet scheduled for the murder of Khung, while the second case of the eleven-year-old girl proceeded in the trial court with the stepfather Mohamad Fazli Selamat (who was a former auxiliary policeman) imprisoned for 15 years and 11 months with 12 strokes of the cane on a reduced charge of manslaughter by using an exercise bar to fatally hit the victim, and the mother Roslinda Jamil spending seven years, eight months and three weeks behind bars for abusing the victim and failing to protect the girl from the fatal assault.