In February of 1839, Portuguese slave hunters abducted a large group of Africans from Sierra Leone and shipped them to Havana, Cuba, a center for the slave trade. This abduction violated all of the treaties then in existence. 53 Africans were purchased by two Spanish planters and put aboard the Cuban schooner Amistad for shipment to a Caribbean plantation. On August 24, 1839, the planters were freed and the Africans were imprisoned in New Haven, CT, on charges of murder. Although the murder charges were dismissed, the Africans continued to be held in confinement as the focus of the case turned to salvage claims and property rights. Claims to the Africans by the planters, the government of Spain, and the captain of the brig led the case to trial in the Federal District Court in Connecticut. The court ruled that the case fell within Federal jurisdiction and that the claims to the Africans as property were not legitimate because they were illegally held as slaves. The case went to the Supreme Court in January 1841, and former President John Quincy Adams argued the defendants' case. Adams defended the right to fight to regain their freedom. The Supreme Court decided in favor of the Africans, and 35 of them were returned to their homeland. The others died at sea or in prison while awaiting trial.