Brady v. Maryland, 373 U.S. 83 (1963), was a United States Supreme Court

Supreme Court of the United States

The Supreme Court of the United States is the highest court in the United States. It has ultimate appellate jurisdiction over all state and federal courts, and original jurisdiction over a small range of cases...

 case in which the prosecution had withheld from the criminal defendant

Defendant

A defendant or defender is any party who is required to answer the complaint of a plaintiff or pursuer in a civil lawsuit before a court, or any party who has been formally charged or accused of violating a criminal statute...

 certain evidence

Evidence (law)

The law of evidence encompasses the rules and legal principles that govern the proof of facts in a legal proceeding. These rules determine what evidence can be considered by the trier of fact in reaching its decision and, sometimes, the weight that may be given to that evidence...

. The defendant challenged his conviction, arguing it had been contrary to the Due Process

Due process

Due process is the legal code that the state must venerate all of the legal rights that are owed to a person under the principle. Due process balances the power of the state law of the land and thus protects individual persons from it...

 Clause of the Fourteenth Amendment

Fourteenth Amendment to the United States Constitution

The Fourteenth Amendment to the United States Constitution was adopted on July 9, 1868, as one of the Reconstruction Amendments.Its Citizenship Clause provides a broad definition of citizenship that overruled the Dred Scott v...

 to the United States Constitution

United States Constitution

The Constitution of the United States is the supreme law of the United States of America. It is the framework for the organization of the United States government and for the relationship of the federal government with the states, citizens, and all people within the United States.The first three...

.

Maryland prosecuted Brady and a companion, Boblit, for murder

Murder

Murder is the unlawful killing, with malice aforethought, of another human being, and generally this state of mind distinguishes murder from other forms of unlawful homicide...

. Brady admitted being involved in the murder, but claimed Boblit had done the actual killing.