Davis v. United States

During a murder interrogation, Davis (defendant) waived his Miranda rights in writing but later made an ambiguous statement about possibly wanting an attorney; investigators asked clarifying questions, Davis said he wasn't requesting a lawyer, and questioning continued until he later unambiguously invoked his right to counsel, at which point questioning stopped. His motion to suppress the resulting statements was denied, he was convicted of murder, and his conviction was upheld on military appeal before the Supreme Court granted certiorari.