Illinois has executed 11 men, but found nine more on death row innocent.
The Serbian forces executed more than 100 men, she said, and burned two paralyzed women.
South Dakota executed 15 men between 1877 and 1947.
Wyoming has executed 22 men between 1884 and 1965.
Arkansas has executed three men on the same day once before, in 1994.
They did execute 53 men but stopped when Britain demanded it.
From 1927 to 1963, the Government executed 32 men and 2 women.
The Saudi government promptly arrested and quickly executed four men blamed for the attack.
Maryland has executed three men since the death penalty was re-established there in 1978.
Since Illinois reinstated the death penalty in 1977, it has executed 12 men.