Saint Petersblog Subpoenaed by FDLE

Pushing Rope is saying Peter Schorsch of Saint Petersblog was subpoenaed by the Florida Department of Law Enforcement over a comment (Wish someone would put a bullet in the fuckers face already!) someone left on his blog. He asked Schorsch some questions.
here
The Communications Decency Act of 1996 makes clear that no internet service provider or web site owner is responsible for someone else's speech.
The FDLE care about this?