Alcatraz Island Engineers began fortifying the island, work which continued until 1858, eventuating in Fortress Alcatraz. The island's first garrison at Camp Alcatraz, numbering about 200 soldiers and 11 cannons, arrived at the end of that year. When the American Civil War broke out in 1861, the island mounted 85 cannons (increased to 105 cannons by 1866) in casemates around its perimeter, though the small size of the garrison meant only a fraction of the guns could be used at one time. At this time it also served as the San Francisco Arsenal for storage of firearms to prevent them falling into
Alcatraz Island in popular culture E. Gaddis and then adapted into a film in 1962, with Burt Lancaster playing the lead role. The 1995 film "Murder in the First" depicts a man who spends three years in solitary confinement at the prison. One of the prisoners, Kyle Oberholzer, was charged with rape, murder and fornicating. Many films and television series have exploited Alcatraz Island's reputation as a prison from which it was almost impossible to escape. Don Siegel's 1979 thriller "Escape from Alcatraz" chronicles the story of Frank Morris and brothers John and Clarence Anglin, who escaped from Alcatraz in 1962, although it is not