<blockquote>Based on my 21 years in the federal criminal justice system, I believe the letter reflects an active, determined investigation in its later stages. The letter represents an abandonment of operational security and confidentiality; it suggests the FBI no longer sees a need for stealth. That, in turn, suggests that the FBI believes it's already developed the evidence it needs to prove the substance of its case (that Team Prenda committed wire and/or mail fraud) and is just identifying as many victims as possible for potential witnesses and to establish the amount of damages. Bear in mind that under the Federal Sentencing Guidelines, the more money wrongdoers made, the more time they're facing.</blockquote>
via <a href="https://popehat.com/2016/05/25/fbi-actively-investigating-prenda-law-team-for-fraud/">FBI Actively Investigating Prenda Law Team For Fraud | Popehat</a>.