The Contents of that Case Henry Opens in the Hit Series?
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- By Brian Tate
- 11 Mar 2026
In June 2023, an investigator, was tasked by her team leader to review a decades-old murder file. The victim was a elderly woman who had been sexually assaulted and killed in her home city home in June 1967. She was a mother of two, a grandmother, a woman whose first husband had been a leading trade unionist, and whose home had once been a hub of civic engagement. By 1967, she was residing by herself, having lost two husbands but still a recognized figure in her Easton neighbourhood.
There were no one who saw anything to her killing, and the police investigation unearthed few leads apart from a handprint on a back window. Police canvassed eight thousand doors and took nineteen thousand palm prints, but no identification was found. The case stayed unsolved.
“When I saw that it was dated 1967, I knew we were only going to solve this through forensics, so I went to the storage facility to look at the evidence containers,” says the officer.
She found three. “I opened the first and put the lid back on again immediately. Most of our unsolved investigations are in forensically sealed bags with identification codes. These weren’t. They just had old paper tags saying what they were. It meant they’d never undergone modern forensic examinations.”
The rest of the day was spent with a co-worker (it was his first day on the job), both wearing protective gloves, forensically bagging the items and cataloging what they had. And then there was no progress for another eight months. Smith pauses and tries to be tactful. “I was very enthusiastic, but it did not generate a huge amount of enthusiasm. It’s fair to say there was some doubt as to the worth of submitting something so old to forensics. It was not considered a priority.”
It sounds like the opening chapter of a mystery book, or the premiere of a investigative series. The final outcome also seems the stuff of fiction. In June, a nonagenarian, Ryland Headley, was found culpable of Louisa Dunne’s rape and murder and given a sentence to life imprisonment.
Covering fifty-eight years, this is believed to be the oldest unsolved investigation solved in the United Kingdom, and perhaps the world. Later that year, the unit won recognition for their work. The whole thing still feels extraordinary to her. “It just doesn’t feel tangible,” she says. “It’s forever giving me chills.”
For Smith, cases like this are proof that she made the right career choice. “He thought policing was too risky,” she says, “but what could be better than resolving a decades-old murder?”
Smith entered the police when she was 24 because, she says: “I’m inquisitive and I was fascinated by people, in assisting them when they were in crisis.” Her previous experience in child protection involved demanding hours. When she saw a job advert for a cold case investigator, she decided to apply. “It looked really engaging, it’s more of a regular hours role, so I took the position.”
Smith’s job is a civilian role. The major crime review team is a compact team set up to look at cold cases – murders, sexual assaults, long-term missing people – and also re-examine live cases with fresh eyes. The original team was tasked with collecting all the old case files from around the region and relocating them to a new secure storage facility.
“The case documents had originated in a precinct, then, in the years since 1967, they moved several times before finally arriving at the archive,” says Smith.
Those containers, their contents now properly secured, returned to storage. Towards the end of 2023, a new senior investigating officer arrived to lead the team. DI Dave Marchant took a novel strategy. Once an aerospace engineer, Marchant had “taken a hard left” on his career path.
“Cracking cases that are challenging – that’s my analytical approach – trying to think in new ways,” he says. “When Jo told me about the box, it was an absolute no-brainer. Why wouldn’t we try?”
In cold case crime dramas, once items are sent off to forensics, the results come back in days. In actuality, the testing procedure and testing take a long time. “The laboratory scientists are interested, they want to do it, but our work is always slightly on the lower priority,” says Smith. “Live-time murders have to take precedence.”
It was the end of August 2024 when Smith received a notification that forensics had a full DNA profile of the rapist from the victim’s clothing. A few hours later, she got a follow-up. “They had a match on the genetic registry – and it was someone who was living!”
Ryland Headley was 92, widowed, and living in Ipswich. “When we realised how old he was, we didn’t have the luxury of time,” says Smith. “It was a full team effort.” In the period between the DNA match and Headley’s arrest, the team read every single one of the thousands original accounts and records.
For a while, it was like navigating two eras. “Just looking at all the photographs, seeing an old lady’s house in 1967,” says Smith. “The witness statements. The way they describe people. Today, it would usually be different. There are so many changes over time.”
Smith felt she got to know the victim, too. “She was such a big character,” she says. “Lots of people were saying that they saw her on the doorstep every day. She was twice widowed, estranged from her family, but she remained social. She had a group of women who used to meet and gossip – and those were the women who realised something was very wrong.”
Most of the team’s days were spent reading and summarising. (“Humongous amounts of paperwork. It wouldn’t make great TV.”) The team also spoke with the original GP, now 89, who had been at the crime scene. “He remembered every detail from that day,” says Smith. “He said: ‘In my career all my life and seen a lot of dead bodies but that’s the only one that had been murdered. That stays with you.’”
Headley’s previous convictions seemed to leave little doubt of his guilt. After the 1967 murder, he had moved, and in 1977 he had pleaded guilty to assaulting two older women, again in their own homes. His victims’ harrowing statements from that previous case gave some idea into the victim’s last moments.
“He menaced to choke one and he threatened to suffocate the other with a cushion,” says Smith. Both women fought back. Though Headley was initially sentenced to life, he appealed, supported by a psychiatrist who stated that Headley was not behaving normally. “It went from a life sentence to a shorter term,” says Smith.
Smith was present at Headley’s arrest. “I knew what he looked like, I knew he was going to be 92, and I also knew how strong the evidence was,” she says. The team feared that the arrest would trigger a health crisis. “We were uncovering the most hidden truth he’d kept hidden for sixty years,” says Smith.
Yet everything was able to go ahead. The court case took place, and the victim’s living relative had been contacted by family liaison. “Mary had believed it was never going to be solved,” says Smith. For the family, there had also been a sense of shame about the nature of the crime.
“Rape is massively underreported now,” says Smith, “but in the 60s and 70s, how many elderly ladies would ever tell anyone this had happened?”
Headley was told at sentencing that, for all practical purposes, he would never be released. He would die in prison.
For Smith, it has been a special case. “It just feels different, I don’t know why,” she says. “In a live case, the process is very reactive. With this case you’re driving the inquiry, the pressure is only from yourself. It started with me trying to get someone to take some notice of that evidence – and I was able to see it through right until the end.”
She is certain that it is not the last solved case. There are about one hundred and thirty cold cases in the archives. “We’ve got so much more to do,” she says. “We have several murders that we’re reviewing – we’re constantly submitting evidence to forensics and pursuing other lines of inquiry. We’ll be forever unlocking the past.”
Film critic and industry analyst with a passion for uncovering cinematic trends and storytelling techniques.