Particle.news

Download on the App Store

Bronx Mother Arrested After DNA Breakthrough in Newborn Twins Cold Case

Investigative genetic genealogy tied her DNA from a discarded can to blood at the scene, prompting murder, manslaughter charges.

Image
Stephanie Castillo is pictured in police custody leaving the NYPD's 44th Precinct stationhouse on Friday, June 19, 2025, in the Bronx. (Barry Williams / New York Daily News)
Image
Image

Overview

  • NYPD arrested 36-year-old Stephanie Castillo on July 25 at a Bronx homeless shelter, charging her with multiple counts of murder and manslaughter in the 2020 slaying of her newborn twins.
  • The full-term infants, later named Zeke and Zane by detectives, were found beaten behind the Claremont apartment building’s courtyard and the Medical Examiner ruled their blunt force trauma deaths homicides.
  • Detectives kept the case in public view by holding annual vigils and increasing reward offers despite a lack of witnesses and nonfunctional surveillance cameras.
  • Investigators recovered a discarded soda can from Castillo, extracted her DNA through investigative genetic genealogy, and matched it to blood evidence at the crime scene.
  • Castillo remains in custody awaiting arraignment and is expected to face trial in Bronx Supreme Court.