No details yet, but even though IANAL, I can think of several federal statutes the Dark Lord may have trespassed.
UPDATE 2—Even when the lawyers work pro bono, legal cases are expensive. If you want to help Aaron Walker with his cases against Lord Voldemort (He Who Must Not Be Named under penalty of peace order), you can contribute here.
UPDATE 3–Here is a copy of Aaron Walker’s complaint.
Counts alleged in the suit include defamation, harassment and invasion of privacy, tortious interference with contract, federal extortion, intentional infliction of emotional distress, interference with business expectations, and federal stalking. Walker’s attorney filed an emergency motion for preliminary injunctive release asking that enforcement of a state peace order against Walker be enjoined. The complaint against Kimberlin seeks $1 million in compensatory damages and $1 million in punitive damages.
The net draws tighter.