CENTERVILLE, Ohio (AP) — An autopsy has confirmed that a Spirit Airlines pilot and his wife died of overdoses of cocaine and carfentanil .

The Montgomery County Coroner’s Office on Tuesday confirmed the autopsy results in the deaths of 36-year-old Brian Halye and 34-year-old Courtney Halye. Police say the couple’s four children found their bodies March 16 at their home in Centerville.

The deaths came about a week after Brian Halye’s last flight. The Dayton Daily News reports the autopsy report doesn’t indicate if the Halyes knew the cocaine contained carfentanil — a synthetic opioid 100 times stronger than fentanyl and 1,000 times more powerful than morphine. But the autopsy report does show that both Halyes took the drug by injection.

Information from: Dayton Daily News, http://www.daytondailynews.com