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Three doors down

Three doors down

by Tortoise Media

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Introducing...The Lab Detective

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Full series out now

Three doors down: a murder, a mother and a thirty year investigation

In May 2023 David Boyd was found guilty of the brutal murder in 1992 of seven year-old Nikki Allan. Sharon Henderson, Nikki’s mother, called for a public inquiry into why it had taken the police so long to find and convict her daughter’s murderer.

When Nikki was murdered, Sharon was a single mother of four living in Wear Garth, a rundown housing estate in Sunderland. David Boyd lived a few floors above Sharon in the same block. He was known to the police. He was the kind of offender who should have been caught.

Three doors down tells the astonishing story of Sharon Henderson’s thirty year campaign to get justice for her daughter’s killing. It shines a light on police behaviour and their treatment of working class women. It’s a personal tale of trauma and resilience in the face of systemic police failure, that couldn’t be more timely.

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Episodes

  • Introducing...The Lab Detective · 41 minIntroducing...The Lab Detective Kathleen Folbigg was known as ‘Australia's worst female serial killer’ - she’d lost all four of her infant children and was convicted for killing…
  • Introducing...Dangerous Memories · 41 minIntroducing...Dangerous Memories When Sarah watched her 23 year old daughter cycle away from her in Chelsea - a well-off corner of London - she had no idea it would be the last…
  • Introducing… Legacy · 5 minWe are partnering with Wondery, so that we can continue to bring our listeners brilliant investigations like Three Doors Down. You can join Tortoise as a member to get early and…
  • Inquiry | Ep 5 · 22 min · Season 1 Episode 5The police say they are not looking for any more victims of David Boyd but we met other women who were confronted by the killer. This episode contains descriptions of child…
  • Conviction | Ep 4 · 24 min · Season 1 Episode 4Sharon's case should be extraordinary but it isn't. A few miles away from Sharon another mother was left to solve her own daughter's murder after being let down by police. For…
  • Confession | Ep 3 · 29 min · Season 1 Episode 3The number one suspect is interrogated by police until he confesses but it's not until 30 years later that the right man is put on trial. For the premium Tortoise listening…
  • Rumours | Ep 2 · 31 min · Season 1 Episode 2Rumours choke the case and a vulnerable suspect is arrested. The first 48 hours after a crime are crucial: what did the police get so wrong in the days after Nikki went missing?…
  • Missing | Ep 1 · 24 min · Season 1 Episode 1In 1992 on a council estate in Sunderland a seven year old girl is murdered. It took the police 30 years to find the killer, a convicted child sex offender who lived three doors…
  • Introducing: Three doors down · 2 min · Season 1Full series available now Three doors down: a murder, a mother and a thirty year investigation In May in a packed room at Newcastle Crown Court, David Boyd, was found guilty of…

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