Christopher Crimaldi, 45, of McHenry.

A McHenry man was convicted of drug-induced homicide on Wednesday for providing heroin laced with fentanyl to his sister, causing her overdose death.

Christopher Crimaldi, 45, of the 1900 block of North Orleans Street in McHenry, was charged with 13 counts of drug-induced homicide and three counts of unlawful delivery of a controlled substance.

A trial concluded Wednesday and the jury convicted Crimaldi on two counts of drug-induced homicide, a Class X felony, and two counts of delivery of a controlled substance.

Crimaldi obtained crack cocaine and heroin, which was laced with fentanyl, for a family member on August 31, 2018, according to prosecutors.

Police said the family member was the man’s sister, Heather Crimaldi, 45, of Freeport.

The McHenry Police Department found the woman unresponsive from a drug overdose in Christopher Crimaldi’s apartment on August 31, 2018.

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Prosecutors said that Heather Crimaldi smoked the crack cocaine and snorted some of the heroin mixed with fentanyl shortly before she died.

An autopsy confirmed the woman had cocaine, heroin and fentanyl in her system.

Prosecutors said that Christopher Crimaldi had arranged for the purchase of the drugs and provided them to his sister.

A police investigation showed that Christopher Crimaldi purchased the drugs from William C. Anderson, 31, of Ingleside.

Anderson had at least four prior drug convictions, two in Lake County and two in Cook County.

Anderson pleaded guilty in March 2021 to one count of drug-induced homicide. He was sentenced to six years in the Illinois Department of Corrections.

Crimaldi is scheduled to be sentenced by McHenry County Judge Michael Coppedge on June 10.