United States v. Jackalow, 66 U.S. (1 Black) 484 (1862), is a U.S. Supreme Court case interpreting the Venue and Vicinage clauses of the United States Constitution. It was an "unusual criminal case" and one of the few constitutional criminal cases from the Taney Court. Jackalow, a mariner from the Ryukyu Kingdom, was suspected of the robbery and murder of the captain of the sloop Spray, Jonathan Leete, and Jonathan's brother Elijah, while the ship was at sea. He was convicted of robbery in the Long Island Sound, but as there was disagreement over the question of jurisdiction between the two judges who heard the post-trial motion (Judge Mahlon Dickerson and Supreme Court Justice Robert Cooper Grier), the case was referred to the Supreme Court by certificate of division.