SAN JUAN, Puerto Rico—A former Haitian senator who is one of the main suspects in the slaying of former President Jovenel Moïse agreed Thursday to be extradited to the United States to face charges, his attorney told The Associated Press. It wasn’t immediately clear when John Joël Joseph, who was arrested in Jamaica in January, would be extradited from the Caribbean island, defense attorney Donahue Martin said. He added that Joseph’s wife and two sons have requested asylum in Jamaica and are still awaiting a response. Martin declined to comment on the extradition agreement, and no further details were immediately available. Haitian government officials did not respond to requests for comment. Two other suspects in the case—Haitian-Chilean businessman Rodolphe Jaar and Colombian soldier Mario Antonio Palacios—were recently extradited to the United States to face charges. Jaar was arrested in the Dominican Republic in January and Palacios was arrested in Jamaica …