Shaun Bridges, a Secret Service agent who pled guilty to stealing from the Silk Road website while he was supposed to be investigating it, has been arrested again.

The 33-year-old Bridges was arrested at his home in Laurel, Maryland, on Thursday, just one day before he was scheduled to turn himself in and begin serving a 71-month prison sentence. The arrest was first reported by The Baltimore Sun.

The reason for Bridges' re-arrest is detailed in documents that remain under seal at this point. However, prosecutors have detailed (PDF) some of what they found in Bridges' home when they arrested him. In their view, some of the evidence suggests he was a serious flight risk. To wit:

[T]he government recovered the following items: two “pelican style” bags which contained: identity documents; a passport card in Bridges’ name; a notarized copy of Bridges’ passport; corporate records for at least 3 different offshore entities ranging from Nevis to Belize to Mauritius, including one that Bridges created on October 28, 2015 after he had pleaded guilty in this case; a Samsung cell phone; and a thumb drive. Also located in those bags were documents relating to his wife’s, Ariana Esposito’s, attempts to obtain citizenship in another country. Government agents also found a MacBook with the serial number scratched off, an iPad tucked between a bedroom mattress, and bulletproof vests, at least one of which had Secret Service markings and thus is believed to have been stolen from the government.

The Silk Road was a "Dark Net" website where buyers could log on and buy just about any illegal drug. It operated from early 2011 until October 2013, when its founder, Ross Ulbricht, was arrested. In February 2015, a New York jury found that Ulbricht was indeed the "Dread Pirate Roberts" who ran the site and convicted him on all counts. In May, Ulbricht was sentenced to life in prison. He has appealed the result of the trial and the sentence.

Bridges was a member of a Baltimore-based task force investigating the site. Shortly after the arrest of a Silk Road staffer, Bridges learned how to log in to the site with admin credentials. He then proceeded to lock some of the site's biggest drug dealers out of their accounts—and siphon about 20,000 bitcoins from them. The bitcoins were worth about $300,000 at the time of the theft and later ballooned in value to more than $800,000.