Josh Wolf

Josh Wolf went to jail for refusing to hand over a video to federal officers of a riot in San Francisco. He eventually did, but in exchange for the right not to testify against the protesters

California, as well as every other state in the U.S. except Wyoming, has shield laws in place to protect journalists from having to testify in court in areas related to their coverage. Wolf went to jail through a loophole -- the police vehicles were federally funded, so authorities were able to classify the asserted arson attempt as a federal crime. Because journalists aren't protected by shield laws from the federal government, Wolf was jailed for his noncompliance.