Unfortunately, during a firing demonstration of Stockton's gun, the breech ruptured, killing Secretary of State Abel P. Upshur and Secretary of the Navy Thomas Walker Gilmer, as well as six others.
Desgraciadamente durante a demostración da arma de Stockton, esta estoupou, matando ao Secretario de Estado Abel P. Upshur, e ao Secretario de Mariña Thomas Gilmer, así como a outras seis persoas.