A Nesquehoning woman was sentenced Monday to a minimum of two years and a maximum of 10 years in state prison in connection with the death of her 5-month-old son, who was found unresponsive in her bed more than two years ago after she had been using multiple drugs.

Michelle Canzoneri, 39, of East Garibaldi Avenue, was under the influence of multiple drugs, including clonazepam, methamphetamine and fentanyl, when she discovered her infant son was not breathing on the morning of Feb. 8, 2024. The baby was taken to St. Luke’s Hospital, Miners Campus, where he was pronounced dead at 11 a.m. An autopsy showed the infant, identified by the Carbon County coroner as 5-month-old Nathan Kostak, died from asphyxia, court papers said.

Carbon County Court of Common Pleas Judge Steven R. Serfass imposed the sentence Monday after Canzoneri entered a negotiated guilty plea in December to a single count of involuntary manslaughter, a second-degree felony. Three other charges — endangering the welfare of children, possession of a controlled substance and possession of drug paraphernalia — were dismissed as part of the plea agreement.

As a condition of her sentence, Canzoneri is required to submit to a blood sample at the Carbon County Correctional Facility and maintain zero tolerance for alcohol, drugs, non-prescribed medications and missed drug tests or urine screens.

Canzoneri told police she did take 12 mg of Suboxone at 11 a.m. and .5 mg of Klonopin at 5 p.m. the day before, Feb. 7. She then took an additional .5 mg of Klonopin at 1 a.m. Feb. 8, before going to sleep.

Troopers obtained a warrant for her blood and clothing. Canzoneri’s blood contained clonazepam, aminoclonazepam, amphetamine, methamphetamine, fentanyl and norfentanyl, a metabolite of fentanyl.

Troopers also executed a search warrant at 8 Rhume St., the home where this occurred. Among the items found were a small plastic bag with suspected fentanyl, syringes and empty stamped bags known by police to be used to store heroin/fentanyl. They also tested other items for drugs, including a cut straw with residue from methamphetamine, fentanyl and Xylazine, also known as Tranq, and a glass coaster with fentanyl residue.

Canzoneri said she snorted drugs the night before, put the baby in bed with her, and put the movie “Despicable Me” on the television, but was not interested. She said she was exhausted from drug use and taking care of the baby, and wasn’t sure if she nodded off or fell asleep, but only lost track of time for a few minutes, court papers said.

Forensic pathologist Dr. Michael Johnson in his autopsy report said the child’s death was sudden and unexpected and suspicious for asphyxia, court papers said. Troopers spoke to then Nesquehoning Police Chief Mike Weaver, who related prior contacts with Canzoneri and the infant’s father, and both were known heroin users with criminal histories and past drug convictions.

Canzoneri had been held at the Carbon County Correctional Facility on $100,000 monetary bail since March 15, 2025, when charges were filed at the Court of Common Pleas level.

Under Pennsylvania law, involuntary manslaughter is elevated from a misdemeanor to a second-degree felony when the victim is under 12 years of age and was in the care, custody or control of the person who caused the death.