Two Boonville residents were arrested today on multiple charges. 54-year-old Gary McCormick and 59-year-old Tamara Simmons are facing felony charges of delivery of a controlled substance and second degree involuntary manslaughter stemming from an incident where they allegedly provided drugs to a Boonville man who later died from an opioid drug overdose. McCormick and Simmons were transported to the Cooper County Jail where they are being held on arrest warrants for the charges.