A man who allegedly gave a deadly amount of fentanyl to a woman — even warning her that the drugs were possibly lethal — has pleaded guilty to manslaughter.

William McNeill, 39, of Dorchester, pleaded guilty on Tuesday in Plymouth court to manslaughter and unlawful distribution of a class A substance, fentanyl.

He was sentenced to serve 6.5 to 7.5 years in state prison. The Plymouth DA’s office had called for a sentence of 12 to 15 years.

“Today, William McNeill finally did right by Felishia Caraway-Mudd by admitting his responsibility in her death and allowing her family to move forward without having to relive this tragedy throughout a criminal trial,” DA Timothy Cruz said in a statement.

“It is my hope that today’s guilty plea and sentence will provide solace to the victim’s family,

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