Over the last week or so, krokodil has been in a few media blurbs emanating out of Utah...
Utah resident may have been busted with ‘zombie drug’ Krokodil, and lots of meth
Flesh-eating drug may have made its way to Utah
Undercover agents foil alleged $80,000 drug sale in Pleasant View
Please note the use of the qualifying word "may".
As I said back in March 2014, there still exists no credible evidence to support the idea that krokodil exists in the USA. Almost a year later and the statement still holds true.
We'll see if the media ever reports the true identity of the substance purported to be krokodil in this case...but I won't lose any sleep over it.