The police managed to arrest all three suspects within less than a week, and on 25 July 2020, both Foo and Wong were charged with murder, while Chua was indicted for disposal of the girl's corpse.

[2] After her parents' divorce, Khung's mother, who gained custody of the girl, began a relationship with Wong Shi Xiang, and went to live with him.

[5] Four days later, after the police established that the girl was no longer alive, Foo Li Ping and her boyfriend Wong Shi Xiang were both arrested and expected to be charged with murder.

On 25 July 2020, five days after their arrests, 33-year-old Wong Shi Xiang and 24-year-old Foo Li Ping were both charged with murder in relation to the death of four-year-old Megan Khung Yu Wai.

However, the objection was overruled by the district judge, who went ahead with the extension on the account that the prosecution needed more time to gather evidence to determine the roles played by each of the trio in Khung's death.

[15][16] After the end of her prolonged remand order, Chua was eventually granted bail of S$50,000 on 13 August 2020, and thus released from prison with conditions to abide to, like curfew hours and wearing an electronic tag.

When the alleged murder of four-year-old Megan Khung was brought to light, many Singaporeans were shocked and appalled at the case, with many expressing sympathy for the girl while some condemned the couple, especially Foo for her responsibility behind the death of her daughter.

Khung's father stated that after his third period of incarceration and release from Changi Prison (where he served all his three sentences) in 2019, he struggled with overcoming his addiction withdrawal symptoms and filled with both self-loathing and depression, and even attempted to commit suicide at one point.

The death of his daughter served as a wake-up call for Khung's father to finally quit drugs for good,[26][27] and hence first started to stay at a half-way house.

[30] Since 2023, Khung's father operated a clothing brand and a production company, and also shared his experiences on TikTok under his alias "Simonboy",[31] and he married for the third time in July 2024.