NEW YORK—The owner of a New York City day care center where a 1-year-old child died after being exposed to fentanyl took steps to cover up her involvement in a sprawling drug operation, even as medics rushed to treat several children in her care who were poisoned by the opioid, federal prosecutors said.
The day care owner, Grei Mendez, and a man who rented a room from her, Carlisto Acevedo Brito, were hit with new federal narcotics conspiracy charges Tuesday. They were previously charged in state court with murder of “depraved indifference” in the death of 1-year-old Nicholas Dominici.





