Alan Hopkinson is a former member of Mensa with an IQ of 159. He was a computer programmer and had served in the royal air force. At the time of his arrest he was middle-aged with a salt and pepper hair, and a moustache. Nothing about him stands out. You could pass him on the street and not take notice. 

Alan Hopkinson is also highly dangerous due to his obsession with young girls.

In 2009, Christopher Monks persuaded a boyfriend, he met through an internet chat room, to kill his parents in return for a disturbing reward.

WARNING: THIS IS PART TWO OF A TWO-PART STORY. PLEASE LISTEN TO SEASON 2 - EPISODE 4 FOR MORE DETAILS ON THIS CASE.

During April 2016 Helen Bailey, a successful author, disappeared. She allegedly left a note, found by her husband to be, asking that no one contact her as she needed some time alone. Over the following weeks and months, appeals were made by Helen’s friends and family in the hope someone might have spotted her.

Ian Stewart lived on Baldock Road in Royston with his finance, successful author Helen Bailey. The couple shared their home with Ian's two sons, from a previous marriage, and Helen's beloved miniature dachshund called Boris. Ian and Helen had planned their wedding for September 2016, but in April of that year,  Helen disappeared. A note left, that looked to be written by Helen, requested that no one contact her as she needed some time alone. Over the next few months, appeals for her whereabouts were made by her family and friends along with most national newspapers, but no one could answer the question, Where is Helen Bailey?

Over ten days in 2013 Joanna Dennehy went on a sadistic killing spree. She murdered three men and left two others fighting for their lives. 

On Tuesday, November 24, 2015,  Michelle James and an acquaintance, were clearing out a communal garden in Beddau, Wales, after a neighbour, Leigh Sabine, had passed away. 

Before she had died, Leigh who was always talkative and very outgoing had told her friend Michelle there was a medical skeleton in the garden and laughed suggesting it would be funny to scare one of their friends with it.

This practical joke would lead to Michelle’s arrest, spur a murder investigation that would span the globe, and ultimately led back to a two pound stone frog that lived on Leigh’s bedside cabinet. 

On May 12, 1958, 31-year-old Peter Manuel went to trial at Glasgow High Court for the murder of eight people.

So desperate were people to get a seat on the public benches for the trial of the infamous Beast of Birkenshaw, they queued outside the court overnight.

They Walk Among Us returns for Season 2 on Wednesday, July 12, 2017. 

WARNING: THIS IS PART TWO OF A TWO-PART STORY. PLEASE LISTEN TO SEASON 1 - EPISODE 18 FOR MORE DETAILS ON THIS CASE. Upon his release in 1987, Michael Peterson had spent almost a decade and a half in prison. He had served the majority of his sentence in solitary confinement, but now the 35-year-old was a free man and had taken up bare-knuckle boxing under his new name, Charles Bronson…

There is only one prisoner who will go down in history as being Britain’s most notoriously violent inmate. This is not a label you get overnight, and despite a couple of short-lived moments of freedom, he has been in prison since 1974, with the majority of those years held in solitary confinement. He has spent time in the notorious “Hannibal Cage” at Wakefield prison due to his violent outbursts. The walls are made of reinforced concrete, and sheets of bulletproof glass allow the inmate to be observed 24 hours a day. The cage within a cage has a table and chair made entirely of cardboard, and meals are slid through a 1-foot gap in the cell door. There is no human contact, not from the guards, and certainly not from other inmates. He is alone except for the rare visit from a solicitor, and this meeting is conducted through a steel net. Prisoner BT1314 now spends his days in a cell 12 foot by 6 foot. While many stress he has never murdered anyone, that isn't for the lack of trying. Michael Peterson has been known under many names, but the most familiar of all… is Charles Bronson…

In 2004, Sydney Blackwell, a retired accountant, and his wife Jacqueline, an antiques dealer, lived in the village of Melling in Merseyside. It's an affluent area with green fields, old churches and quaint cottages. They shared their home with their 18-year-old son, Brian. As Sydney sat in his favourite chair, his son attacked him with a claw hammer and then preceded to stab his mother over 15 times…

WARNING: THIS IS PART TWO OF A TWO-PART STORY. PLEASE LISTEN TO SEASON 1 - EPISODE 15 FOR MORE DETAILS ON THIS CASE. Stephen Port was arrested on October 15, 2015, for the murders of 4 men. They were all found in Barking in East London and had all died in strikingly similar circumstances. All had deadly levels of GHB in their system, and the police had initially believed this was either accidental or self-inflicted. The family and friends of the young men did not think that they would choose to take their own lives, and it was only due to the sheer force of will on their part; they managed to convince investigators to look beyond their initial findings. After new evidence had been uncovered, the police had their suspect in custody…

St Margaret’s Church is located in Barking, in East London. The church is surrounded by grassland and lies on the same grounds as an abbey which has fallen into ruin. During the summer of 2014, the churchyard would be the location where two young men would be found, weeks apart. Both had died from an apparent overdose of GHB, otherwise known as liquid ecstasy. Both men, in their early 20s, were similar in stature and openly gay. The police attributed the first death to an accidental overdose and the second to suicide, with neither of them being deemed suspicious. According to police, the two young men had known each other. The second had taken his life as he couldn’t live with the knowledge that the first man had died from a drug overdose while the two men were having sex. One year later, a third man fitting the same description as the previous two was found dead, next to the churchyard. While the police still believed the three deaths to be a coincidence, it was the body of a fourth man found dead only 500 metres from the churchyard, in June 2014, that would lead investigators to the front door of Stephen Port…

Canterbury is a Cathedral city located in Kent in the South East of England. The city lies on the River Stour, and within the city walls, the gothic Canterbury Cathedral dominates the skyline. On March 29, 2016, the emergency services received a phone call from 54-year-old Foster Christian. He claimed that he was assaulted at home, by some of his housemates. Foster, who had a cut above his right eye, insisted he was acting in self-defence; however, two people had been stabbed to death, and two young men, aged 20 and 16, were severely injured… The incident was said to have started over a cup of tea…

The Humber Bridge nature reserve is in the east ridings of Yorkshire and is a scenic place where families spend the day. It's also the location of rumour and legend, like that of the headless man that stalks the woodland at night.  The legend has a grain of truth as a motorcyclist was beaten to death there in 1963, though wasn't decapitated as the rumour suggests. It isn't the only story about the park. The phantom of a vanishing cyclist is said to be regularly seen. It is said a cyclist had died by plunging over the edge of the quarry, and his ghost continues to replay the tragedy. Another urban legend is that the black mill, a windmill that stands in the park, was a safe place for witches in Victorian times, which made it a spot for practising Satanists in the 1980s… 

WARNING: THIS IS PART TWO OF A TWO-PART STORY. PLEASE LISTEN TO SEASON 1 - EPISODE 11 FOR MORE DETAILS ON THIS CASE. On May 11, 2012, in the early hours of the morning, a fire raged throughout a semi-detached house in Derby. The fire had spread so rapidly by the time firefighters arrived, and the house was engulfed in flames Six children died as a result. Those responsible for the fire were the children's parents and a family friend…

May 11, 2012. In the early hours of the morning, a fire raged throughout a semi-detached house in Derby. Thick smoke escaped through anywhere it could, billowing out onto the street, alerting neighbours who rushed to try and help those trapped inside. The fire had spread so rapidly by the time firefighters arrived, the house was engulfed in flames...

At 13, Graham Frederick Young’s knowledge of chemistry was that of a university student, and he needed subjects that he had unlimited access to. That’s when he turned his attention to experimenting on his family…

The Secret intelligence service, or MI6, are a not-so-secret government agency that collates vast amounts of foreign intelligence and feeds this information back to the British government. The agency has been at the forefront of intelligence gathering throughout both world wars, the cold war and the war on terror. Most secret agents travel the globe leaving no stone unturned. However, far from their cinematic counterparts like James Bond, they do not have a license to kill. So why would this government agency want to assassinate a 14-year-old boy from Greater Manchester?

In early December 2015, Katie Locke started communicating online with Carl Langdell. Carl painted a picture of the person he wished he was while corresponding with Katie but looking from the outside in, through the rose-tinted lens of social media, Carl’s dark side was hidden from view…