On February 8, 1924, a Chinese immigrant named Gee Jon became the first person in America executed by cyanide gas. He died in the gas chamber inside the Nevada State Prison in Carson City. Over time, eleven states adopted the cyanide chamber as the official method of execution. From 1924 to 1999, 594 persons died in these gas chambers. In 1960, asphyxiation executioners in California killed a man named Caryl Chessman. He perished in the cyanide room for the crimes of kidnapping and rape. He is the only person in U.S. history to be executed for a crime other than murder. The gas chamber, compared to the rope, the firing squad, the electric chair and lethal drugs, is the cruelest way to dispatch murderers. Death by cyanide took between six and eighteen agonizing minutes, and for those witnessing the execution, it produced a gruesome tableau. It was the only form of capital punishment that required the condemned man to contribute to his death by breathing within a chamber filled with cyanide gas.