A York City man is accused of providing the heroin that caused the death of a Dover Township woman late last year, according to police.

Northern York County Regional Police say George Bermudez sold heroin to Dianne Mokanyk, her partner and a friend on Dec. 17 and that Mokanyk overdosed on it later that night.

Mokanyk, 56, was pronounced dead at York Hospital the next day.

Bermudez, 42, of 809 W. Princess St., faces charges of drug delivery resulting in death and criminal use of a communications facility, among other charges. Bermudez had not been arraigned on the charges as of Wednesday.

Overdose: Police were sent to Mokanyk's residence in the 3400 block of Carlisle Road on Dec. 17 for a report of a person not breathing. When police arrived, Mokanyk's partner told officials that Mokanyk was unresponsive.

She had no pulse, and officers attempted to use Narcan on her but were unsuccessful.

Mokanyk's partner said Mokanyk had injected herself with heroin earlier that day and had only been unconscious for about 10 minutes, police said.

Mokanyk was taken to York Hospital, where she later died.

Autopsy results revealed in February that Mokanyk had died from heroin and fentanyl toxicity, according to charging documents.

Picking up heroin: Police spoke with Mokanyk's partner on Dec. 20.

She told police that she, along with Mokanyk and another woman, had gone into York City about 3 p.m. Dec 17 to meet up with Bermudez, whom Mokanyk's partner said she had been buying heroin from for about two years, documents state.

Mokanyk dropped off her partner near Bermudez's residence just as he was leaving, according to police.

Bermudez instructed his wife to carry out the deal, documents state. It is not clear if his wife faces charges.

According to charging documents, Mokanyk's partner received six bags of heroin, which she distributed between herself, Mokanyk and the other woman in the car.

Mokanyk and her partner then injected themselves with it just before returning to their Dover Township residence, police said. Her partner said Mokanyk "appeared to be fine," after the injection, according to court documents.

On May 29, officers went to Mokanyk's partner's new home and provided her with a lineup, and she identified Bermudez as the person she purchased heroin from, police said.

— Reach Christopher Dornblaser at or on Twitter at @YDDornblaser.

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