An Eau Claire County judge has sentenced a man to eight years in prison for supplying the drugs which killed a woman two years ago. Jariel Riley found out how long he will be behind bars during a Thursday hearing. Prosecutors say the Eau Claire man supplied the heroin which killed 28-year-old Antoinette Allen of Cornell. Allen wasn’t breathing when she was found in a home in December 2016. An autopsy showed she had a toxic level of fentanyl and heroin residue in her system. Investigators used an apparent Facebook conversation about drugs with Riley to establish his responsibility for her death.