Casefile Archives 6: The Eriksson Twins

Podcast: Casefile True Crime
Episode Date: February 14, 2026
Summary by Casefile Presents

Overview

This Casefile Archives episode revisits one of the series’ most infamous and bewildering cases: the story of Sabina and Ursula Eriksson, Swedish twin sisters whose actions on England’s M6 motorway on May 17, 2008 defied logic, baffled authorities, and culminated in tragedy. Re-produced to match current standards, this re-release explores the sisters’ mysterious backgrounds, their extraordinary and dangerous behavior on the motorway (documented on video by a BBC crew), and the deadly sequence of events that followed. Central to the episode is the puzzle of shared delusion, rare mental health disorders, and the failures—systemic or otherwise—of the criminal justice and medical system to foresee catastrophe.

Key Discussion Points & Insights

1. The Eriksson Twins’ Backgrounds

Early Life:
- Born November 3, 1967, in Värmland, Sweden; two older siblings.
- Described as quiet, somewhat “odd” children; “tendency to be a bit violent” at school, but with no mental health history or treatment.
Adulthood Separation:
- By 2008, Ursula was living in the US; Sabina in Ireland with her partner and children.
- Their relationship was “extremely tight.” Contact over the years included visits from each to the other's home, sometimes with children.

2. Lead-Up to the M6 Motorway Incident

Embarked on spontaneous travel with little explanation:
- Ursula visits Sabina in Ireland; both leave for England at 2 AM, May 16, 2008, without telling anyone.
- Sighted at Liverpool’s St. Ann Street Police Station (8:40 AM, May 17), where Sabina reports vague fears for her children's safety—though they are in Ireland.
- Boarded a coach for London but were put off at Keele Services due to odd, suspicious behavior: refusing to let go of bags, displaying paranoia.

3. M6 Motorway and BBC Film Crew Incident

Walking on the motorway:
- Refused to wait for another coach, walked along the M6 central reservation (highway center barrier), captured on traffic cameras.
First police contact:
- Sprinted into traffic as patrol approached; Sabina struck by a car but unhurt, both acting bizarrely calm (13:05).
Dramatic escalation, filmed by BBC’s Motorway Cops:
- Ursula suddenly lunged into motorway traffic, struck and run over by a 40-ton truck; Sabina followed, struck violently by a car ([13:35]-[14:37]).
- Both survived but were severely injured—yet still combative, resisting aid, yelling conflicting statements (“They're going to steal your organs” — [20:36]).

Notable Moment

“One moment the twins were standing together calmly and nothing seemed out of the ordinary... then suddenly, for no apparent reason, Ursula lunged forward... and then ran straight out onto the road and directly into the side of a 40-tonne truck. The truck ran straight over the top of her. Sabina then made her move, running out onto the motorway as well.”
[13:35] – Casefile Narrator

On their resistance post-accident:

“It took six people in total, with Sabina still resisting and putting up a fight. Her strength was later described as inhuman.”
[22:01] – Casefile Narrator

Authorities suspected drug intoxication or a suicide pact, but tests for drugs/alcohol came back negative.

4. Aftermath: Systemic Bafflement & Missed Warnings

Sabina given only minor charges, evaluated by multiple doctors who found “nothing wrong with her”; not fully psychiatrically assessed due to minor injuries.
She was released after just five hours in hospital, showing complete composure—so “compliant that the police didn’t even bother to handcuff her” ([24:30]).

Ominous statement by Sabina in custody:

“We say always in Sweden that an accident rarely comes alone. Usually at least one more follows. Perhaps two.”
[27:10] – Sabina (as reported by the narrator, after her release from hospital)

5. The Killing of Glenn Hollinshead – 48 Hours Later

Sabina, appearing lost and distressed in Stoke-on-Trent, is helped by local men Glenn Hollinshead and Peter Molloy, who offer her food and shelter.
Her behavior: Paranoid, shifting from sociable to agitated, repeatedly checks windows, snatches cigarettes away muttering about poison ([29:00]-[31:00]).
The next evening, Glenn is found with fatal stab wounds, identifying Sabina as the attacker with his final words:

“I’ve been stabbed. She stabbed me.” ([32:00])
Sabina assaults a passerby who tries to stop her from self-harm, then jumps from a 30ft bridge—survives with broken ankles and skull fracture ([33:45]).

6. Medical and Legal Proceedings

Sabina hospitalized for months, then charged with Glenn’s murder. She answers only “no comment” to police questions.
Two psychiatric diagnoses:
- Induced delusional disorder (defense): Shared psychosis between Sabina and Ursula.
- Acute polymorphic psychotic disorder (prosecution): Brief, rapidly-shifting psychosis.
Both agree Sabina was mentally ill at the time, but never assessed Ursula.
Sabina changes plea to manslaughter with diminished responsibility; receives 5-year sentence ([39:25]).

Judge’s Statement at Sentencing

“I understand that this sentence will seem entirely inadequate to the relatives of the deceased. However, I have sentenced on the basis that the reason for the killing was the mental illness and therefore the culpability of the defendant was low.”
[40:00] – The Judge

7. Aftermath and Enduring Mysteries

Sabina returns to Sweden after prison; Ursula had already returned after her release from hospital. Neither’s life after release is well documented.
Glenn’s family critical of the system’s failure to recognize and act on Sabina’s volatile mental state.

Family's criticism

“Her mental condition should have been properly assessed. After what she did on the motorway and the experiences the police had, her mental disorder should have been picked up prior to her being let out into the community.”
[41:00] – Glenn’s brother Gary (paraphrased)

Notable Quotes & Memorable Moments

“The twins were holding their bags tightly against their chest, as though terrified of letting go. The way they moved and spoke... made it seem like they were plotting something.”
[06:20] – Casefile Narrator
Motorway chaos captured:
- Ursula’s truck impact and Sabina’s leap into traffic filmed by BBC; footage later used in court ([13:35]-[14:37]).
Paramedics’ and police officers’ shock:

“Have you ever seen that before? ... What the hell were they running for? They're on something.”
[18:43] – Police Officer at the scene
Sabina’s paranoia post-collision:

“They're going to steal your organs.”
[20:36] – Sabina, after the accident
Sabina's post-release composure:
- Contrasts with prior violent behavior; shares Swedish saying about consecutive accidents ([27:10]).

Timeline with Timestamps

| Time | Key Segment / Event | |---------------|-------------------------------------------------------------------------------| | 01:03 | Introduction to the re-release; case background and release format | | 03:50–06:20 | Early lives of the Eriksson twins; separation and later reunion | | 06:50–09:45 | Arrival in Liverpool, odd police report, bus incident, suspension at services | | 10:40–13:05 | Walking on the M6; Highway Agency & police arrivals | | 13:35–14:37 | The twins running into traffic; both struck by vehicles—key incident | | 18:16–23:11 | Medical and police response, erratic behavior, struggle to restrain Sabina | | 24:00–27:10 | Sabina's calm after hospital, ominous “accident rarely comes alone” remark | | 28:37–33:45 | Sabina’s encounter with Glenn & Peter, overnight at Glenn’s, murder and escape | | 34:50–37:53 | Medical/forensic findings, Sabina’s arrest and silence | | 38:18–42:45 | Psych assessments, court proceedings, sentencing, criticism of system | | 42:45–43:46 | Glenn's family’s statements and episode conclusion |

Podcast Tone & Style

Matter-of-fact, meticulous, unsettling:
The narrator’s tone is “dispassionate and deeply researched,” laying out the facts, courtroom findings, and lingering ambiguities without sensationalism.
Casefile’s trademark respectful caution is maintained—warnings about distressing content, focus on victims, questions on systemic failures.

For Further Reflection

The episode leaves listeners pondering the unsolved mysteries at the core: the true mental state of both twins, the possible role of shared delusions, and whether authorities could—or should—have prevented the fatal escalation. It exposes the vulnerabilities and limitations in how criminal justice and mental health systems interact, especially in the face of rare and acute psychiatric phenomena.

Recommended for:
Anyone intrigued by true crime cases that defy easy explanations, highlight systemic cracks, and challenge assumptions about mental illness and responsibility. This retelling remains one of Casefile’s most perplexing and discussed stories.

Transcript

Casefile Narrator (0:02)

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Casefile Narrator (1:03)

As we enter Casefile's 10th year, we've created a new run of special bonus content. Casefile archives a series of releases revisiting the earliest years of the show, along with previously unreleased premium episodes. This is completely additional content and will not replace new episodes. We'll still be back on March 7th with brand new cases and we'll be releasing the same number of new episodes this year as we did last year. Casefile Archives is simply a way to mark the 10th year, revisit some older episodes, and to offer previously subscriber exclusive episodes to the wider audience for the first time. For the re release episodes, we have fully edited, polished, re recorded and freshly produced them from start to finish to match our current production standards. They are not full rewrites. Our aim isn't to reshape the cases or alter the original storytelling, but to preserve them as they were first told while giving them the level of production they didn't have back in 2016. Where appropriate, updates have been added, but the core structure remains faithful to the originals. Because of this, these episodes may sound a little different to our recent work. Today's re release is the Erickson Twins, the 17th case file episode ever produced. On May 17, 2008, police were called to the M6 motorway near Stoke on Trent after reports that a pedestrian had been hit by a vehicle when officers arrived, two women stood calmly on the shoulder, uninjured, composed and seemingly cooperative. But within minutes the situation took a sudden and terrifying turn. Originally released on April 30, 2016, this episode has been re recorded and newly produced as part of Casefile Architect. Our episodes deal with serious and often distressing incidents. If you feel at any time you need support, please contact your local crisis centre for suggested phone numbers, for confidential support and for a more detailed list of content warnings, please see the show notes for this episode on your app or on our website. On Saturday May 17, 2008, motorway patrol officers Cope Finlayson responded to a call that a pedestrian had been hit by a vehicle on the M6 motorway near the English city of Stoke on Trent. Expecting the worst, the two officers were surprised when they arrived at the scene to see two pedestrians standing calmly and uninjured on the shoulder of the motorway. It didn't look like much was going on at all, but within a few minutes the seemingly calm situation took a frightening twist. Not a lot is known about the lives of twin sisters Sabina and Ursula Eriksson. They were born in Vermland county in west central Sweden on Friday, Nov. 3, 1967. They had two older siblings, a sister and a brother. While they were at school the twins were described by some as a little bit odd. They mostly kept to themselves and they sometimes had a tendency to be a bit violent, but there is no evidence that either Sabina or Ursula was ever treated for mental health issues following that. Their years after school and into early adulthood are a bit of a mystery. By the year 2000 both women were in their early 30s and had left Sweden. Ursula relocated to the United States while Sabina was living in Ireland with her partner and two children. It's believed that between 2000 and 2008 Sabina may have spent time in the US visiting her twin. Her son even moved in with Ursula for a period of time, though for what reason we do not know. In 2008 it was Ursula's turn to travel. The now 40 year old Ursula flew to Ireland to stay with her twin sister. It's not known whether this was just a catch up visit or if there was a specific reason for it, but what we do know is that during Ursula's time in Ireland, the twins were absolutely inseparable. They had an extremely tight bond. Then Suddenly at around 2am on Friday, May 16, Sabina and Ursula left Ireland without telling anyone of their plans or intentions. The next time that the twins were seen was at 8:40am the following day, Saturday, May 17th in Liverpool, England. It's believed they had travelled from Ireland to England via ferry. They walked into St. Ann Street Police station near Liverpool's city centre and Sabina told officers there that she was concerned about the safety of her children. Why Sabina and Ursula travelled to England to report this when Sabina's children and partner were back in Ireland is anyone's guess. Liverpool police contacted their Irish counterparts who performed a welfare check on Sabina's children and partner. Everything was ok. Sabina's partner told the Irish police that Sabina had taken off suddenly after they had a fight. Irish police said Sabina and Ursula could get in touch with them if they had any fears or concerns upon their return to Ireland. Some time after leaving the police station in Liverpool, the twins got onto a National Express coach that was bound for London, boarding at about 11.30am the twins each carried a bag which they refused to store in the coach's luggage area. Instead, both women insisted on holding onto their respective bags throughout the journey. Just after 1pm, the coach stopped at Kiel Services, a service station on the M6 motorway. It's unclear why the coach stopped there, as it wasn't a scheduled rest stop. While some reports state that this stop was due to a driver change, others suggest that the only reason the coach stopped was because Sabine and Ursula Eriksen were behaving erratically. The twins disembarked, then had a discussion with the bus driver. Their behaviour and refusal to store their luggage had made him suspicious. When the twins wouldn't let him search their bags, he refused to allow them back on the coach. The driver told the service station's employee, a woman named Melissa, that he wasn't letting the twins back on. He essentially handballed the issue over to Melissa, asking her to keep an eye on the twins after he departed. Melissa watched the twins as they walked around the service station. They were holding their bags tightly against their chest, as though terrified of letting go. The way they moved and spoke to one another made it seem like they were plotting something. Melissa soon grew suspicious of the twins as well, wondering if perhaps they were carrying some kind of bomb or explosive device in their bags. Concerned, Melissa phoned the police. Officers soon arrived at the scene and spoke to the twins, but found nothing untoward. They told Melissa that there were no issues and the two women were going to make their way to London. The police gave the twins a phone number for the coach company so they could arrange to catch the next bus. Although Sabine and Ursula had agreed to this plan, they soon left the service station. Before the next coach arrived, instead of boarding a vehicle, they began walking along the M6 motorway. The M6 is covered by video cameras that are monitored by the Highway Agency's control centre in Birmingham. At about 3.20pm, the twins were captured on these cameras walking along the motorway's central reservation. Although there was a low metal barrier on either side of the central reservation, it was still a dangerous place to walk and not designed for pedestrians. A Highway Agency patrol unit was dispatched to move the twins off the motorway. Highway Agency officers aren't police. Their role is to handle issues on England's motorways, ensure traffic is flowing freely and address incidents that could put people at risk. If there is an accident, Highway Agency officers will sort out a traffic management plan, put in roadblocks and coordinate diversions. They don't pull motorists over or issue speeding fines. When the twins saw the Highway Agency car, they jumped out of the central reservation and onto the motorway in front of oncoming traffic. Cars braked hard and swerved to avoid running them over. Despite this swift response, one driver accidentally clipped Sabina and she was knocked over. Although onlookers feared that Sabina might have serious injuries, she seemed perfectly fine. She got up and she and Ursula made their way off the M6 onto the shoulder. Police and paramedics were immediately summoned to the scene. Police officers Cope and Finlayson responded to the call and it just so happened that they had a camera crew with them. The two officers were being followed that day by a small crew from the BBC television program Motorway Cops, who were filming officers Cope and Finlayson as they went about their shift. When they arrived, the twins were still standing on the shoulder of the motorway. They were speaking with the two Highway Agency officers who were first at the scene. Everybody appeared calm and all seemed well. The paramedics hadn't arrived yet, but by the looks of things, they wouldn't be required. Nobody appeared injured and the atmosphere was relaxed. Officers Cope and Finlayson joined the others on the motorway shoulder and began speaking with one of the Highway Agency officers to find out what was going on. The twins were a short distance away, standing next to the other Highway Agency officer. While the Highway Agency officer was still briefing the police, this happened. Right.