Poisoners

List here poisoners.

I will begin:

Alfonso Medina: was a Mexican who poisoned at least 600 people, 300 seriously, and was reported to having killed about 69 people in Chavinda, Mexico in August 1966.

The 22-year-old was preparing 1,122 breads, and while doing so he added some arsenic in the bread's dough. When the bread was distributed people began suffering poisoning problems. About 600 people were treated in local hospitals and in Cruz Roja de Zamora. Medina stated that he poisoned the bread as an act of revenge against to one of the employers, Jose Tijero, whom he claimed to have witched him. The day before the poisoning, Medina buyed 50 grams of arsenic.

The casualty count seems to be a confunsion, while most newspapers says that about 600 people were poisoned, some Brazilian newspapers claimed that four people died and another Brazilian newspaper claimed that 69 were killed, while some Western and European newspapers says that 300 to 500 people were poisoned, none of which died. A La Vanguardia article say that the name of the baker was Roberto Medina Tejada.

João Candido da Silva: (alias Dudu) was a Brazilian baker who poisoned at least 100 people, some of them seriously, in Afogados da Ingazeira, Brazil, in October 1958, before being arrested. Responding to the question why he poisoned those people, he said he committed the crime for fun.

Lin Yuerong: was a Chinese snack shop employee who poisoned at least 186 people in Fuzhou, People's Republic of China on June 4, 1987.

Lin, a 31-year-old married woman, had an affair with a former co-worker named Xie Wenquan (谢文泉) with whom she plotted to poison her husband. On May 31, 1987 Xie bought Methamidophos for this purpose, but their plan failed for unknown reasons.

On June 4, due to a dispute with a man surnamed Tang (唐), a subcontractor of the snack shop, over wages and other things, Yin sprinkled the latter's rice cakes with poison in an attempt to frame him. The following day Tang delivered the cake to the Fuzhou Xindian Central Elementary School (福州市新店中心小学) where it was cut into 1070 pieces and served to the students and staff, resulting in the poisoning of 186 people. Six of them were taken to hospital in serious condition where they could be rescued.

Lin was arrested on June 13, tried at the Fuzhou Intermediate People's Court (福州市中级人民法院), convicted of attempted murder, sentenced to death, and deprived of her political rights for life. She filed an appeal to the Fujian Provincial Higher People's Court (福建省高级人民法院) which dismissed it on August 18 and upheld the original verdict.

Khalid Mahmood: was a Pakistani who killed at least 31 people with poisoned food (poisoned the food with Chlorfenapyr) in Layyah, Pakistan on April 20, 2016.

Chen Zhengping: was a Chinese who killed 42 people and wounded at least 300 to 400 others with rat poison in the eastern Chinese city of Nanjing, China, on September 15, 2002.

Poisoning is a type of serial killing/mass murder where it is possible to get away with it if you are careful.

Columbine20 wrote:

Poisoning is a type of serial killing/mass murder where it is possible to get away with it if you are careful.

That's true. Look for example the Paraquat murderer and the Chicago Tylenol murderer, which were both persons (or people) that carried a series of poisonings and got away with it.

Sometimes it is good fun to get away with something. (Only a misdemeanor though, not serial killers)

Columbine20 wrote:

Sometimes it is good fun to get away with something. (Only a misdemeanor though, not serial killers)

Yep haha! Have you looked into serial poopers? They are fun and is a funny thing to get away with (We don't know if the victims of serial poopers enjoy what they prey had done on their objects, haha).

I know two cases of serial poopers, these two are:

The Mad Pooper: is the nickname given to an unidentified woman in Colorado Springs, Colorado, United States, who repeatedly defecated in public while jogging during the summer months of 2017. While she has primarily targeted one family's property, she has not used it exclusively, leaving some of her excrement at other sites nearby. Photographs of her have been made public, but neither she nor anyone who knows her has come forward with further information that might identify her.

Serial pooper of Akron, Ohio: An unidentified man suspected to have defecated on more than 100 vehicles the past several years. His motivation is unclear, although many of the victims, including the resident who set up the camera, are workers for the City of Akron. Since then, Akron police detectives have tried to determine the man's identity. Despite his photo defecating on a car being spread worldwide on news and social media websites, detectives have been unable to identify the man.

Police did not obtain any DNA from the waste. Residents removed the waste and cleaned their vehicles.

Is it true that Lavrentij Berija managed to poison none other than Stalin? From what I've read, he vomited blood in his agony and it's quite atypical for somebody who had cerebral atherosclerosis as a main cause of death

Graham Young: was an Englishman responsible for the murder of his stepmother and two company colleagues between 1962–1971.

In 1982 there was the Chicago Tylenol Murders, it was never solved, but Tylenol was laced with cyanide and 7 people died.

Not quite the same, but the Anthrax attacks that happened a week after 9/11 warrant a mention.