On that day, the Brown County Sheriff's Office responded to 1538 S. Webster Ave in Allouez for a report of a non-breathing female who was believed to be six months pregnant. She was pronounced dead.
The woman was identified as 32-year-old Jennifer L. Skeen. She was pregnant, and her unborn child had also died, deputies said.
Her cause of death was a drug overdose from Fentanyl.
The investigation into Skeen's death led deputies to Cassandra Nygren and her boyfriend. Deputies tried to stop them through a traffic stop on October 10, but they fled with her 14-month-old child in the car. Deputies said they did not chase the two because it was too dangerous, but soon after found them and arrested them.
Deputies said the two showed a "pattern of extremely reckless and destructive behavior" by using and distributing opiates.
The sheriff's office has referred the following charges against Cassandra Nygren:
First degree reckless homicide (two counts)
Delivery of controlled substance-heroin
Neglecting a child
Keeper of a drug house
Possession of controlled substance with intent to deliver
Possession of heroin
Possession of drug paraphernalia
Her boyfriend will also face a litany of charges, including two counts of first degree reckless homicide as well.
The two are being held in jail on probable cause, and each are being held on a $50,000 cash bond.
The family of the victims has been told of the arrest and are asking for privacy.
VIDEO: Daughter of Rep. John Nygren facing drug, homicide charges