Ernesto Miranda was arrested in 1963 and questioned by police for two hours without being informed of his constitutional rights to remain silent and have an attorney present. Miranda confessed during the interrogation and was convicted based on this confession. He appealed his case to the Supreme Court, arguing his confession should be inadmissible since he was not informed of his rights. In a 5-4 decision, the Supreme Court ruled Miranda's confession could not be used against him since police failed to inform him of his rights, establishing the Miranda rights that police must inform suspects of their right to remain silent and have an attorney present during questioning.