Charges have been placed against a Bronx day care owner and a tenant following the fentanyl death of a one-year-old boy.
A kilogram of fentanyl was stored on top of the maps where the children take napes, ABC7 reported.
FDNY EMTs administered Narcan to him and three other children who were found unresponsive on the drug-laden mats.
After finding the children, detectives said Grei Mendez, the day care owner, talked to her husband on her cell phone before calling 9-1-1.
They also discovered video of someone "carrying two full shopping bags" out of the day care, leaving the children suffering the effects inside and in desperate need of help.
Mendez and Carlisto Acevedo Brito were charged with narcotics possession with intent to distribute resulting in death and conspiracy to distribute narcotics resulting in death in connection with the overdose of four children under the age of three, one of whom died, at the day care.
Police also are searching for Mendez's husband who was seen running away from the day care as emergency personnel arrived.
Prosecutors told the media Mendez deleted 20,000 text messages from her phone before she was arrested, but they managed to recover them.
"The defendants alleged conduct that led to those poisonings is unconscionable, it's inexcusable, and it's the reason that they are now in federal custody," said U.S. Attorney Damian Williams.
Since July, the two people charged conspired to distribute fentanyl at the day care where they maintained large quantities of fentanyl "despite the daily presence of children, including infants," detectives wrote in the charging document.
They added they also found kilo presses, which are designed for the re-compression of drugs in powder form commonly used by narcotics traffickers.