BurtW's indictment was filed on 2014 oct 07 in the US District Court for Colorado. On the same day, at least three other cryptocurrency related cases were filed in that same court, with the same special agent Arran McWhirter, with the same prosecuting attorney of Michele Korver, all offenses listed as occurring in Boulder County:

14-cr-00398 USA v Burton Wagner
18 USC 1960
Count 1: Operation of Unlicensed Money Transmitting Business

14-cr-00399 USA v Sean Swanson
18 USC 1960
Count 1: Operation of Unlicensed Money Transmitting Business

14-cr-00400 USA v Michael Seiler
18 USC 1956 (a)(3)(B) and (C)
18 USC 1960
Count 1: Money Laundering
Count 2: Operation of Unlicensed Money Transmitting Business

14-cr-00401 USA v Katherine Noland and Thomas Noland
18 USC 1956 (a)(3)(B) and (C)
18 USC 1960
18 USC 2
Count 1: Money Laundering (Katherine)
Count 2: Operation of Unlicensed Money Transmitting Business (Katherine and Thomas)

In all four of these indictments, the text of the Operation of Unlicensed Money Transmitting Business count is essentially identical, differing only in the opening sentence naming the time period of the offenses, and in where the offenses occurred.

The Money Laundering counts for the latter two cases (Seiler and Noland) specifically mention 'distribution of controlled substances'.

Source: US Courts' PACER documentation system https://www.pacer.gov