Angelica Sullivan, age 30, of Ellenville, was arrested on September 24 and charged with second-degree murder of her 10-year-old daughter, Kathleen E. Pulido.

On August 18, 2025, Pulido was pronounced deceased at approximately 12:12 p.m. following a medical emergency at her home on Park Street. Police were, and remain, vague about the nature of the emergency, saying in a recent statement that the initial call was to treat an “unresponsive 10-year-old female.”

The Ellenville Police Department were first on scene, but the State Police quickly took over the investigation. They announced the death two weeks after it happened, citing a backlog of cases, and asked for the community’s help in the matter. At that time, District Attorney Emmanuel Nneji called the case “very serious” but refused to answer whether homicide was suspected.

No details of the incident have been released by the authorities, except that Sullivan was arrested and the case remains ongoing.

“Investigators demonstrated professionalism, persistence, and resilience throughout this case,” Troop F BCI Captain Brad Natalizio said. “Despite the difficult nature of investigating the death of a child, they remained focused on following the evidence and conducting a thorough and objective investigation.”

The New York State Police received help from the Ellenville Police Department, and a series of agencies in Ulster and Orange Counties, because Pulido resided in both counties. The Ulster County Sheriff's Office, Ulster County District Attorney's Office, Ulster County Child Advocacy Center, Ulster County Child Protective Services, Orange County Family Violence Unit, and Orange County Child Protective Services all worked on the case.