Why do drug dealers lace illicit drugs with fentanyl?

Posted on 03/02/2023

The driving force behind a record 100,000 overdose deaths per year, fentanyl is now laced in opioids like oxycodone and heroin and, increasingly, in non-opioids like cocaine and counterfeit pills. ABC News explores why dealers lace drugs with fentanyl, despite it killing off customers.