I found a link on /r/TheBarbarianClan and it really shows me that people are out there are fucked up...if things like this continue to happen the dnms will get shut down very very quick.
http://wbtw.com/2016/03/22/super-pill-is-deadly-and-cheap-100x-stronger-than-morphine/
The Grand Wizard remembers one or two reports of people found dead with alprazolam and fentanyl analogues in their system. At first we thought this might have been caused by a contaminated press like the cannabinoid bars which made their way around the darknet a while back. Now we're not so sure: if somebody accidentally laced a run of bars with fentanyl we would expect to see a trail of corpses. So it could just be a case of somebody playing the Heath Ledger Pharmaceutical Cocktail game with predictable results.