Maynard v. Cartwright, 486 U.S. 356 (1988), is a United States Supreme Court case in which a unanimous Court found that the "especially heinous, atrocious or cruel" standard for the application of the death penalty as defined by the Eighth Amendment was too vague. As such, Oklahoma's law was overturned based on Furman v. Georgia (1972). Justice William J. Brennan Jr. announced in a concurrence, joined by Justice Thurgood Marshall, that he would adhere to his view that the death penalty is in all circumstances cruel and unusual punishment prohibited by the Eighth and Fourteenth Amendments.