Shyller Tan Cheng Cheng: Murder Lawsuit and Legal Timeline

Few things are as devastating as losing a spouse to a violent act, especially when the perpetrator is your own father. That’s the reality for Shyller Tan Cheng Cheng, whose husband Spencer Tuppani was stabbed to death by her father Tan Nam Seng on July 10, 2017.

Date of murder: July 10, 2017 ·
Sentence of Tan Nam Seng: 8.5 years imprisonment ·
Age of Tan Nam Seng at sentencing: 76 years old ·
Value of disputed Richard Mille watch: S$389,205.13

The key facts below show the timeline and legal actors at the heart of the case.

Who is Shyller Tan Cheng Cheng?

What is her relationship to Tan Nam Seng?

• Shyller Tan Cheng Cheng is the eldest daughter of Tan Nam Seng, according to the Singapore High Court grounds of decision (SGHC 38).
• She worked for her father before the murder, as noted in the Wikipedia article on the murder of Spencer Tuppani.

How is she related to Spencer Tuppani?

• She married Spencer Tuppani in July 2004 (Wikipedia).
• At the time of his death, she was his wife and one of the co-administrators of his estate (Singapore High Court).

The implication: Shyller Tan Cheng Cheng was caught between her father and her husband, a dynamic that exploded into violence and then into years of litigation.

What happened to Spencer Tuppani?

When did the stabbing occur?

• The stabbing took place on July 10, 2017, on Boon Tat Street in Singapore (Yahoo News Singapore, citing police and court documents).
• Tan Nam Seng was charged with murder two days later (Yahoo News Singapore).

What caused the fatal injury?

• The fatal wound perforated a heart artery, according to the Singapore High Court grounds of decision.
• Tan Nam Seng reportedly pleaded guilty to a lesser charge of culpable homicide not amounting to murder (Wikipedia).
• He was sentenced to 8.5 years in jail in September 2020 (The Straits Times).

The catch: the sentence reflected a plea deal that avoided a murder conviction, a detail that continues to unsettle the victim’s family.

Where is Shyller Tan Cheng Cheng now?

Is she still involved in legal proceedings?

• She pursued a civil suit to recover a Richard Mille watch from her parents (Mothership).
• The suit was dismissed in December 2023 and an appeal failed in July 2024 (Mothership; The Star).

What is her current public profile?

• Public records show she was active in the case as of 2024, but her current whereabouts are not publicly documented (Singapore High Court grounds).
• No verified social media accounts are linked to her in any authoritative source.

Why this matters: the lack of a public profile means that anyone looking for “Shyller Tan Cheng Cheng now” will find mostly court documents and news reports, not personal updates.

Does Shyller Tan Cheng Cheng have an Instagram account?

What social media presence does she have?

• Multiple queries suggest interest in her Instagram profile, but no official or verified account is publicly documented in available sources.
• Search results show a limited public social media footprint.
• It remains unclear whether she maintains any online presence.

The trade-off: without a verified account, any claim of finding her on Instagram is unsubstantiated.

What is the legal aftermath of the murder case?

What happened during the appeal in 2024?

• The estate of Spencer Tuppani failed to recover the Richard Mille watch from Tan Nam Seng’s family (The Star).
• Justice Mavis Chionh upheld the lower court’s conclusion that the parents’ conduct did not amount to conversion of the watch (The Star, citing the High Court judgment).

What civil suits were filed?

• Shyller Tan Cheng Cheng sued her parents but the court dismissed the claim (Mothership).
• Additionally, Spencer Tuppani’s mother Tham Poh Kwai had filed a dependency claim for at least S$500,000 in damages in November 2019 (The Straits Times).
• The estate administrators alleged that the watch was handed to Tham Poh Kwai by a long-time mistress, but the court did not find sufficient evidence of conversion (The Straits Times).

The pattern: the legal system has consistently rejected the estate’s attempts to recover the watch, leaving the family with no further recourse.

For Shyller Tan Cheng Cheng, the legal battles have ended without the outcome she sought. The watch remains missing, her father is in prison, and her husband’s estate has been stripped of a key asset. The implication is stark: the family rift that began with a stabbing has been deepened by a courtroom loss, leaving no winners.