Brooklyn grandmother, grandson were poisoned to death months apart, says medical examiner

An investigation into the deaths of a young boy and his grandmother months apart in Brooklyn found they were both poisoned inside the boy's home, according to the Office of the City Medical Examiner.

Wilhelm Ducatl, 4, died on May 26, 2021. He was hospitalized in critical condition two days earlier after being rushed to Maimonides Hospital with stomach pains.

An initial investigation by the medical examiner detected possible poisoning.

Investigators then exhumed the body of Ducatl's maternal grandmother who had died at Mount Sinai Hospital Brooklyn on Feb. 17, 2021, also after complaining of stomach pains. 

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Tofoon Man, 63, was at the boy's residence at 2469 65 Street in Bensonhurst when she was hospitalized.

On Wednesday, the medical examiner announced the deaths were by the heavy metal thallium, often used in rat poisoning and insecticide.

An investigation into who poisoned the boy and grandmother were underway.

Police said the parents of the boy were in a custody battle and Man was living with the boy at the time of his death.

No suspects were announced.