Fentanyl seller accepting bitcoin payments in dark web market sentenced to 7 years in prison

According to TheNextWeb news, the dark web drug Matthew Witters will serve seven years in prison for selling thousands of doses of fentanyl, most of which are traded in cryptocurrencies such as Bitcoin. Authorities point out that Matthew Witters was the main seller of fentanyl on AlphaBay and Dream Market in the dark web market from 2015 to 2017.