True crime at its best

Psycho Killer: Shocking True-Crime Stories

Simply the best podcast for lovers of authentic, intelligent true-crime investigations

Welcome to Psycho Killer. If you’re obsessed with authentic true-crime stories you’ve come to the right place. Psycho Killer is a podcast made by real homicide investigators for true-crime connoisseurs like you.

Psycho Killer combines a detective’s powers of investigation with a journalist’s nose for a story to bring you insights and exposés from the darkest corners of the human psyche.

Our British sleuths pore over the evidence, challenge contemporary decisions and take nothing for granted. We reveal what really happens in a murder hunt — the triumphs and the tragedies.

So go ahead. Get closer. We'll see you on the dark side.

Mark 'Reds' Martin: The Nottingham Serial Killer

sex, violence, language

Mugshot of Mark 'Reds' Martin with Nottingham's ruined Great Northern Warehouse  in the background.The newspapers called him the Sneinton Strangler after the district of Nottingham where he plied his trade. 

Mark Martin operated in the shadows. While others walked by 'Reds', as he was known, always had time for the hungry and homeless.

But he was no Samaritan. He took what little they had – their benefits, their drugs, their remaining shreds of dignity. And when he had sucked them dry, Martin disposed of his victims – or got one of his henchmen to do the job for him.

Mark Martin was a psychopath, a parasite, and a curse on society. It was a blessing the police stopped him when they did.

Listen to "Mark 'Reds' Martin - Nottingham's First Serial Killer" on Spreaker.

Peter Tobin And The Bible John Mystery

Explicit content

Serial killer, paedophile and rapist Peter Tobin appearing at courtThis is the face of Peter Briton Tobin.

This is the last face Angelika Kluk, Vicky Hamilton and Dinah McNicol saw before the paedophile, rapist and serial killer ended their young lives.

Tobin subjected his young victims to unspeakable cruelty. Then he murdered them and buried their bodies – Vicky and Dinah in his back garden – Angelika under the floorboards of a Catholic church in Glasgow.

Some speculate Tobin was responsible for the disappearances of hundreds of young women and girls. But Tobin, to use a cliché, took his secrets to the grave. He died on 8 October 2022 while serving three life sentences.

This podcast explores the full horror of Peter Tobin's life and crimes, and the links that have been drawn between the serial killer and three murders in Glasgow in the 1960s: the so-called Bible John Killings.

Sources and Acknowledgments

Crimewatch UK, BBC Television, 2010
Crown Office and Procurator Fiscal
Strathclyde Police
The Daily Mirror
The Daily Record
​​​​​​​The Murderer and Me, Znack and Co for Sky Original Documentaries, 2021

Listen to "Peter Tobin And The Bible John Mystery" on Spreaker.

Refuge: Our Charity For 2023

Refuge logoRefuge supports thousands of women and children trying to escape domestic abuse. 

90% of domestic abuse in the home happens in the presence of a child. 

Your regular gift could help children overcome the trauma of witnessing or experiencing domestic abuse and help women get back their independence.

How to donate

The Isdal Woman Mystery: Murder or Suicide? And Who On Earth Was She?

The face of Isdal Woman - a perspective reconstruction from a forensic photograph taken at the scene. Credit: Alex Vts via the Death in Ice Valley Facebook page They called her the Isdal Woman for two reasons: her charred body was found in a remote ice valley – 'isdal' in Norwegian – and she had no name. Isdal Woman was the ultimate Jane Doe.

The discovery of her remains near Bergen in Norway has puzzled and fascinated investigators for five decades. The deeper you dig, the more baffling the case becomes.

Was the corpse that of a spy or a Nazi hunter? Was Isdal Woman an international criminal? Or was she simply a fantasist who roamed Europe and chose a beautiful spot in the Norwegian mountains as the place to end her life?

Psycho Killer decided to unravel Idsdal Woman's tangled web and answer those questions – once and for all.

Listen to "The Isdal Woman: Who Was She, And Was She Murdered?" on Spreaker.

Charles Rotherham & The Bessie Sheppard Murder

This haunting tale dates back to 1817. Bessie Sheppard was a teenage girl living in turbulent times. Her violent death at the hands of vagrant ex-soldier Charles Rotherham traumatised her community in the heart of Sherwood Forest. Local gentlemen erected a memorial to Bessie and, to the puzzlement of researchers, her murderer. Rotherham was hanged in chains, but as we discovered, his execution was the beginning of a fascinating piece of folklore.

The murder stone is at WTW intervals.many.luck. Please take care if you visit because the site is beside a busy main road.

Listen to "The Haunting Tale Of Bessie Sheppard's Murder" on Spreaker.

The Bunnyman Mystery

A hatchet supposedly thrown through the window of Air Force cadet Robert Bennett's car while parked in the 5400 block of Guinea Road, Fairfax, VA, October 31 1970.Come with us as we chase a rabbit down a hole — a blood-thirsty psychopath dressed in a monstrous, man-size bunny costume. Parents and grandparents in Fairfax, VA, are supposed to warn their children: "Be good, or the Bunnyman'll get you!"

The blood-spattered Bunnyman has won a place in the rogue's gallery of American horror fiction. But is the story based on fact? Who was the Bunnyman? And is he still out there?

Our quest to identify the legendary Bunnyman led us through a maze of myth, mystery and murder.
Prepare to enter a wonderland of nightmares, where nothing is what it seems.


  • Donnie Darko, Flower Films,2001, written and directed by Richard Kelly.
  • For Whom the Bell Tolls (Donnie Darko cinema scene), Steven Baker and Carmen Daye.
  • Killing Moon, Echo & The Bunnymen (Sergeant, McCulloch, Pattinson and de Freitas). Produced by David Lord, Korova, 1984. 
  • Bunnyman, Osiris Entertainment, 2011, produced and directed by  Carl Lindbergh.

Listen to "The Bunnyman Mystery" on Spreaker.

Walter Chadwick: A Rival Of Jack The Ripper?

Walter ChadwickJack the Ripper was the Devil incarnate. He rose to notoriety from among the countless demons who preyed on the poor and vulnerable of Victorian London. But whereas Jack was driven by unexplained, dark urges, his contemporaries killed and mutilated their victims in the course of more mundane crimes. 

These were the robbers and housebreakers who plagued the metropolis. They were quick to resort to violence and the homicide rate soared. London's police struggled to contain an epidemic of lawlessness unrivalled until the rise of the gangsters in 1920s America.

Two cases, in particular, horrified the citizens of London. Both were senseless acts of violence, committed by a psychopath who clearly killed for the sake of killing. One man was suspected of both murders. But would the Metropolitan Police find enough evidence to hang him? 

Listen to "Jack The Ripper's Rivals: Did Walter Chadwick Get Away With Murder – Twice?" on Spreaker.

All Episodes 

This is it – every Psycho Killer shocking true crime podcast ever made. 

Psychopathy Test 

Answer the $64,000 question: 'Am I a psychopath?'

Subscribe With Your Favourite Listening App