Alcatraz Citadel having some 111 cannons encircling the island at peak, and was also used as a war camp. During the Civil War, the defense establishment at Alcatraz Citadel had the onerous task to defuse the possibility of any local war between the Union and Confederate supporters who were both part of the population of California, and to protect San Francisco. Ammunition in the form of 10,000 muskets and 150,000 cartridges was supplied to the fort, which made the Fort Alcatraz and the island most impregnable and thus leaving any plans of the Confederate soldiers of taking control of the San Francisco
Alcatraz Federal Penitentiary prisons in the country, especially the food, and many volunteered to come to Alcatraz. On December 3, 1940, Henri Young murdered fellow inmate Rufus McCain by running downstairs from the furniture shop to the tailor's shop where McCain worked and violently stabbing McCain in the neck; McCain died five hours later. Young had been sentenced to Alcatraz for murder in 1933, and was involved in an escape attempt at Alcatraz during which the famous gangster Doc Barker was shot to death. He spent nearly 22 months in solitary confinement as a result, but was eventually permitted to work in the