Dalton Prejean (December 10, 1959 – May 18, 1990) was one of 22 people in the United States executed for crimes committed as a juvenile prior to the decision Roper v. Simmons in 2005. He was tried, convicted, and executed in the electric chair in Louisiana for the murder of Louisiana State Police Trooper Donald Cleveland. The case received international attention because the defendant was a black man convicted by an all-white jury; had brain damage and tested just above mental retardation; and was age 17 at the time of the crime.