Hundreds of rioters have been charged, convicted and sentenced for joining the mob attack on the U.S. Capitol. Unlike their cases, Samuel Lazar’s appears to have been resolved in secret — kept under seal with no explanation, even after his release from prison. Lazar, 37, of Ephrata, Pennsylvania, was arrested in July 2021 on charges that he came to the Capitol on Jan. 6, 2021, dressed in tactical gear and protective goggles, and used chemical spray on officers who were desperately trying to beat back the angry Donald Trump supporters. There is no public record of a conviction or a...