One of the top narcotics dealers on Silk Road, the recently shuttered online drug bazaar, secretly began cooperating with federal agents after his Seattle-area home was raided in late-July, The Smoking Gun has learned.

The disclosure that Steven Sadler, known online as “Nod,” was flipped will likely cause significant distress for his large Silk Road customer base, which included retail and wholesale buyers of heroin, cocaine, and methamphetamine.

Additionally, suppliers for Sadler, 40, will likely also be concerned that they have been exposed to law enforcement scrutiny.