As it turns out, it was the US government.
The Department of Justice on Thursday said it took possession of the digital assets on November 3. They were allegedly connected to an unnamed person identified as Individual X, who reportedly stole the funds from Silk Road in 2012 or 2013.
The civil complaint merely alleges that certain property is subject to forfeiture. The United States must prove, by a standard of preponderance of the evidence, that the items are subject to forfeiture. If the United States prevails, the court will order all interests of any potential claimant forfeited.