Fentanyl Adds Deadly New Gamble to Heroin OD Roulette By Crime and Justice News | August 28, 2017 LikeTweet EmailPrint More More on Drugs Subscribe to Drugs Powerful synthetic opioids are now being found in about 40 percent of the heroin sold in Chicago, prompting a spike in deadly overdoses . . . Want to read more? Please subscribe to The Crime Report!