Jon Ryan Schaffer, the frontman of the band Iced Earth, has agreed to cooperate with investigators in hopes of getting a lighter sentence, and the Justice Department will consider putting Schaffer in the federal witness security program, U.S. District Judge Amit Mehta said. This signals that federal prosecutors see him as a valuable cooperator as they continue to investigate the militia groups and other extremists involved in the insurrection on Jan. 6 as Congress was meeting to certify President Joe Biden’s electoral win