Lehigh County District Attorney Jim Martin and Whitehall Township Police Chief Michael Marks announced Sept. 9 an arrest in a fatal drug overdose.

Natalia Hellriegel, 29, of Ephrata, has been charged with drug delivery resulting in death, a felony of the first degree, as well as other drug-related offenses.

According to Martin, on Sept. 10, 2020, Whitehall Township police were called for a report of a cardiac patient in a parking lot in the 2600 block of Macarthur Road. Dominic Anthony, 30 of, Lehigh Township, Northampton County, was found dead next to his motorcycle, according to the report.

Anthony died of mixed drug toxicity, the Lehigh County Coroner’s Office said, and his death was ruled an accident.

An investigation revealed text messages between Hellriegel and Anthony arranging a drug deal for heroin Sept. 10, 2020, at Hellriegel’s home for a quantity of heroin. It is alleged Hellriegel delivered heroin as arranged, Martin said.

The investigation also revealed two other drug purchases by other individuals from Hellriegel on various dates in February 2021.

Martin said assistance in the investigation was provided by the Regional Intelligence and Investigation Center, the Officer David M. Petzold Memorial Digital Forensics Laboratory of Lehigh County and the Lehigh County Drug Task Force.