The adventures of John George Haigh or the Acid Bath Killer began in 1934 when he was put into jail for the first time for a case of fraud. The next term in prison was for four years for fraud in 1936 when he posed as a solicitor.
A string of sentences in jail followed this, and here he chalked out the plans for a perfect murder. He planned to use sulphuric acid to destroy the physical remains of the person he had killed. His successful experiments with mice revealed that it was only a matter of 30 minutes before all traces of the body to disappear.
Haigh got free in 1943, and met his former employer, McSwan one day. The latter disappeared one day. Haigh confessed to having killed him by hitting him on the head and disposing of his body in a drum filled with sulphuric acid. He went on to do the same with McSwan's parents.
His next victims were a couple, Dr Henderson and his wife, Rose. Haigh usurped all the money they had. But it wasn't enough. So, his next victim was a wealthy widow putting up at a hotel. She invited him to a place to share the details of an idea she had in her mind. When they were alone, he murdered her, and disposed of her body in the same manner as earlier.
Police investigations revealed quite a bit of the fraud Haigh had raked up. His experiments with acid were also evident. Haigh confessed to having committed the murders, but he attributed them to his urge to drink human blood. He had allegedly been directed to do so in his dreams as a young boy.
The jury pronounced a death sentence on him. He was hanged to death in 1949.