 Beloit Mann and an Indiana resident sentenced this month for distributing fentanyl. Investigation into the sale of fentanyl in Beloit began last year by the Rock County Sheriff's Office and the United States Drug Enforcement Administration. As a result of the investigation, two individuals were indicted federally by the Western District of Wisconsin. Earlier this month, 39-year-old Darnell Isabella Beloit was sentenced to seven and a half years in prison and 38-year-old Jarrell Knight of Hammond, Indiana was sentenced to eight and a half years.