Haigh murdered people for money, then dissolved the bodies in acid. He was born on 24 July 1909 in Lincolnshire, but his family moved to Yorkshire.
Haigh’s parents belonged to the Plymouth Brethren, a strict religious sect, although it is unknown whether this had anything to do with his later behaviour. Haigh won a scholarship to attend Wakefield Grammar School, which meant he was a choirboy in Wakefield Cathedral.
After leaving school, Haigh did clerical jobs. He also married in 1934, but the marriage was short-lived. Haigh turned to fraud, but he was not very good at it. He kept getting caught. His first prison sentence was in November 1934. He was released in December 1935. In 1936, he moved to London, hoping for a fresh start. For a time, he worked as a chauffeur for a young man named William McSwan. Haigh was convicted of fraud again in November 1937. He was released in 1940. He then worked as a fire watcher, alerting the fire brigade when necessary. However, in 1941 he was sent to prison again. He was released in 1943.
It has been suggested that Haigh may have been affected by his experiences during the German bombing, and that is what turned him to murder. Or maybe the third time he was sent to prison, he was determined not to get caught again. This time, Haigh obtained acid from the prison workshop. He also obtained dead mice that prisoners caught. He carried out experiments by dissolving dead mice in acid. It had obviously occurred to him that you could destroy a human body that way.
Haigh foolishly believed that he could not be convicted of murder if there was no body. He was wrong. English law does not require a body to prove murder. Haigh often said that murder could not be proved without a corpus delicti. But he misunderstood the Latin phrase. It does not mean a human body; it means a body of evidence.
This time, after being released from prison, Haigh turned to murder. His first victim was William McSwan, who had employed him previously. The two met, apparently by accident, and renewed their friendship. On 6 September 1944, Haigh lured William to a basement and hit him over the head with an iron bar. He finished off McSwan and placed his body in an oil drum. He then filled it with acid. After two days, William's body had dissolved into sludge, which Haigh poured down a drain.
Haigh told William McSwan's parents that their son had disappeared to avoid conscription. Haigh then persuaded them to employ him as a rent collector. On 2 July 1945, he lured William's father to a basement, where he killed him. His wife arrived about an hour later, and Haigh killed her too. He had two oil drums prepared to dissolve the bodies in.
Afterward, Haigh forged their signatures. He sold their property, and he persuaded people that they had emigrated to Australia. However, Haigh spent huge amounts on gambling and by 1948 he was beginning to run short of money. His next two victims were Dr Archibald Henderson and his wife Rosalie.
On 13 February 1948, Haigh persuaded Dr Henderson to come to a workshop he rented in Crawley, Sussex, by telling him he had an invention to show him. Haigh shot Dr Henderson and placed him in an acid bath. Later, he lured Rosalie Henderson to his workshop. He shot her and dissolved her in acid too. Once again, Haigh forged signatures, allowing him to sell their property. He managed to convince people that the Hendersons had gone to live in South Africa. But Haigh continued his lavish spending, and before long he was running short of money again.
His last victim was Olive Durand-Deacon. In 1949, Haigh was living at the Onslow Hotel in London. Mrs Durand-Deacon was a fellow guest. She was a wealthy widow, and befriended Haigh. She had a scheme to manufacture false fingernails, and Haigh feigned interest. He invited her to come to his workshop in Crawley. On 18 February 1949, Haigh gave her a lift there in his car. When she entered the workshop, he shot her in the back of the head. Haigh placed the body in an acid bath. He then sold Olive's jewellery. He took her Persian lamb skin coat to a dry cleaner.
Haigh then drove back to London. Later, he went back to the workshop and poured out the dissolved body on the ground. But Haigh was becoming careless. The body had not been completely destroyed, and traces of it remained on the ground. Meanwhile, the other residents of the hotel noticed Olive was missing and became concerned. A woman named Constance Lane told the police. They spoke to other hotel residents, and a policewoman, Alexandra Lambourne, was immediately suspicious of Haigh. She persuaded her superiors to check if he had a criminal record. They then found that Haigh had convictions for fraud.
They also discovered that Haigh had a workshop in Crawley. They searched it and found a receipt for Olive's lamb skin coat from a dry cleaner. They also found a recently fired revolver. And they found that Haigh had sold the missing woman's jewellery. Haigh realised the game was up and he confessed to the murder of Olive Durand-Deacon. He also told police about the other murders he committed. However, Haigh hoped he could escape execution by pretending to be insane. He claimed to be a vampire and that he drank the blood of his victims.
The police searched the ground around Haigh's workshop in Crawley. Despite his boast that he had destroyed the body of Mrs Durand-Deacon, traces of it were found, including animal fat, which does not dissolve in acid. Olive had been suffering from gallstones, and a layer of fat surrounded them and protected them from the acid. There were also fragments of foot bones (they probably survived because the body was not completely immersed). Most telling, the police found a denture, which a dentist identified as belonging to Olive.
Haigh went on trial on 18 July 1949. Haigh pleaded not guilty due to insanity. But the jury was most unlikely to accept his plea since he obviously killed people for their money. Nevertheless, the defence called Dr Henry Yellowlees, who said that Haigh was a 'paranoaic'. However, the prosecution lawyer asked Dr Yellowlees if Haigh knew he was doing something punishable by law. Yellowlees was forced to admit that he did. The prosecution lawyer then added 'Punishable by law and therefore wrong?'. Yellowlees had to say yes.
The jury found Haigh guilty of murder, and he was sentenced to death. John George Haigh was hanged on 10 August 1949.