On this bad day in 1839 (09/09/1839), Maria Swanenburg was born. Swanenburg was a Dutch serial killer who murdered at least 27, and was suspected of killing more than 90 people. Her nickname was Goeie Mie (which translates as Good Mee) which she got for taking care of children and ill people in the poor neighborhood of Leiden in which she lived.
It was established with certainty she poisoned at least 102 people with arsenic of which 27 died (16 of those were her relatives) between 1880 and 1883. The investigation included more than ninety suspicious deaths. Her first victim was her own mother in 1880; shortly after this, she killed her father too. She was caught when trying to poison the Frankhuizen family in 1883. Her trial began in 1885. She was found guilty of murder of her last three victims and sentenced to life in a correctional facility. She died there in 1915.









