Simmons: 2005 U.S. Supreme Court ruling that the execution of those under 18 (at the time of committing the capital crime) is unconstitutional. Thompson v Oklahoma: 1988 U.S. Supreme Court ruling that the execution of those who committed their crime when 16 is unconstitutional. Wrongful executions in the United States References 1963 births 1992 deaths 1981 murders in the United States 20th-century executions by Texas American people executed for murder People convicted of murder by Texas People executed by Texas by lethal injection People from Amarillo, Texas Juvenile offenders executed by the United States