Miller Place man pleads guilty to manslaughter in fentanyl death, infant poisoning case

A gavel and a block i
A gavel and a block is pictured on the judge's bench in this illustration picture taken in the Sussex County Court of Chancery in Georgetown, Delaware

HAUPPAUGE, N.Y. — A Miller Place man pleaded guilty Thursday to charges related to the death of a Patchogue woman and the fentanyl poisoning of an 11-month-old infant in Lake Grove, Suffolk County District Attorney Raymond A. Tierney announced.

Robert Mauro, 40, admitted to second-degree manslaughter for the fatal overdose of a 31-year-old woman and criminal sale of a controlled substance for selling fentanyl that resulted in the near-death of a child. The incidents occurred in January 2024.

“This defendant pled to manslaughter after selling fentanyl that was so potent, it caused the fatal overdose of a 31-year-old woman and the near-fatal overdose of an infant,” Tierney said in a statement.

Authorities said Mauro sold fentanyl to James Carr of Lake Grove, whose infant son suffered acute fentanyl poisoning on Jan. 13, 2024. Carr faces charges including second-degree assault, endangering the welfare of a child, and possession of a controlled substance. Investigators found that Mauro was aware of the drug’s potency when he made the sale.

Mauro also sold drugs to the Patchogue woman, who died of a fentanyl overdose on Jan. 29, 2024. Mauro had assured her the narcotics were not dangerous despite his own concerns about the substance’s strength. Mauro will be sentenced on Dec. 10 and faces up to 15 years in prison.