A Utah man killed his wife aboard an Alaska cruise and told an acquaintance who later walked into the couple's blood-splattered room that he did it because she laughed at him, the FBI said in documents released Thursday. Kenneth Manzanares of Santa Clara, Utah, was charged with murder after he was found with blood on his hands and clothes, and with blood spread throughout the cabin on the Princess Cruises ship Tuesday night, according to a criminal complaint by FBI Special Agent Michael L. Watson.