By Hub City Times staff

MARSHFIELD – A Marshfield woman already serving time for supplying the drugs that led to a fatal overdose will now stand trial in Marathon County for homicide charges.

Cassandra Staab is facing first degree homicide charges stemming from the overdose death of Thomas Bychinski in January 2017. The complaint against Staab says she supplied the heroin laced with fentanyl  that Bychinski used the day he died. According to the complaint, Staab told others that used the drug with Bychinski that the heroin was “very potent, powerful stuff.”

The complaint also states one of the men that found Bychinski dead said that the drug was supplied by Staab, and that he had been buying from her for about a month. Another man added that he once went to Milwaukee with her to purchase the drug from a supplier, and that Staab and another passenger were using on their way home.

Staab is already serving a three-year jail sentence for manufacturing and distributing the drug. A Marathon County judge ruled Feb. 12 that prosecutors have enough evidence against Staab to justify a trial on the homicide charges. A trial date has not been set, and Staab has not entered a plea.