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Solved case · 2023

Murder of Elianne Andam

SOLVEDCONVICTED
Updated
Updated Jul 7, 2026
Elianne Andam - Floral TributeElianne Andam - Floral TributeCredit: hahnchen at Wikimedia Commons (must include link if medium allows)CC BY-SA 3.0Source

The short answer

Murder of Elianne Andam in brief

Elianne Andam, a 15-year-old schoolgirl, was fatally stabbed near the Whitgift Centre in Croydon, London, on 27 September 2023 by 17-year-old Hassan Sentamu, who was convicted of her murder and sentenced to life imprisonment with a minimum term of 23 years.

Start hereThe REAL Murder Behind Adolescence: Elianne Andam

Key facts

Year
2023
Place
Whitgift Centre, Croydon, London
Status
SOLVEDSolved
Victim
Elianne Andam
Outcome
Convicted: Hassan Sentamu

The coverage index

Where to watch & listen

1 piece from 1 creator: ranked, with duplicates removed and short clips set aside.

Start here

The REAL Murder Behind Adolescence: Elianne Andam

Video · YouTube · 44 min · 2025

Eleanor Neale's 44-minute breakdown, the fullest single telling on file.

Watch on YouTube

Titles and descriptions are the creators’ own and may not reflect current legal status. The sourced facts are in the file below. Players load only when you press play. Suggest coverage we’re missing.

The case file

What happened

Elianne Princess Nana Andam was born on 28 June 2008 to Michael and Dorcas Andam (née Dorcow). At the time of her death she was 15 years old and a Year 11 pupil at Old Palace of John Whitgift School. She was described as much-loved and talented, and had aspired to become a human rights lawyer.

On the morning of 27 September 2023, Andam was stabbed near the Whitgift Centre in Croydon, London. Earlier that day, a meeting had been arranged between Hassan Sentamu and his ex-girlfriend to exchange personal belongings, including a teddy bear. Sentamu attended the meeting without the teddy bear, having instead armed himself with a knife in advance. Andam accompanied her friend to the meeting to provide support. During the encounter, Andam took a bag of clothes that had been handed to Sentamu and ran away. Sentamu chased her and stabbed her multiple times. Andam collapsed at the scene and died from her injuries approximately 50 minutes later, at 9:21 a.m. The attack was captured on CCTV, and Sentamu was arrested later that same day.

Sentamu pleaded guilty to manslaughter, with his legal team arguing diminished responsibility due to reduced decision-making capacity associated with autism. A jury rejected this argument and convicted him of murder. He was sentenced to life imprisonment with a minimum term of twenty-three years.

Andam's death prompted significant public reaction. A candle-lit vigil was held on 4 October 2023 outside the Whitgift Shopping Centre, a week after her death, drawing thousands of attendees, many dressed in white, to pay their respects. Rapper and Croydon native Stormzy attended the vigil, standing alongside Andam's family during prayers.

Her killing has been cited as an example of violence against women and girls, with death statistics referenced showing that femicide, including cases like Andam's, disproportionately affects black women. Her death was also mentioned as one of several killings that inspired writer Stephen Graham to create the Netflix drama series Adolescence, which explores the motivations behind extreme acts of violence committed by young boys against girls. However, according to co-creator Jack Thorne, the series is not based on any particular incident.

3 dated entries · 2008–2023

Timeline

  1. Elianne Princess Nana Andam is born to Michael and Dorcas Andam.

  2. Elianne Andam is stabbed near the Whitgift Centre in Croydon, London, and dies of her injuries approximately 50 minutes later at 9:21 a.m.; Hassan Sentamu is arrested the same day.

  3. A candle-lit vigil is held outside the Whitgift Shopping Centre, attended by thousands including rapper Stormzy.

2 named in this file

People

Victims first. Every legal label is set from public records and court outcomes, not from the prose.

  • Elianne Andam

    VICTIM

    15-year-old Year 11 pupil at Old Palace of John Whitgift School, fatally stabbed on 27 September 2023.[3]

  • Hassan Sentamu

    CONVICTED

    Convicted of the murder of Elianne Andam; sentenced to life imprisonment with a minimum term of 23 years after a jury rejected his diminished-responsibility defence.[3]

From the record

Quick answers

Who was convicted?
Hassan Sentamu: Convicted of the murder of Elianne Andam; sentenced to life imprisonment with a minimum term of 23 years after a jury rejected his diminished-responsibility defence.

3 cited

Sources

Coverage is not a source: every fact in this file rests on the records below.

  • 2 Press
  • 1 Encyclopedic
  1. Contemporaneous coverage — BBC News

    PressBBC NewsAccessed Jul 7, 2026

  2. Contemporaneous coverage — The Independent

    PressThe IndependentAccessed Jul 7, 2026

  3. Murder of Elianne Andam

    EncyclopedicWikipediaAccessed Jul 7, 2026

Trust

Record history

First published
Jul 7, 2026
Last verified against sources
Jul 7, 2026
Corrections
None

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