Escaped Alcatraz inmate allegedly wrote letter after vanishing

CBS station KPIXTV obtained a letter allegedly written by one of the men who escaped from the federal prison on San Francisco s Alcatraz Island in 1962. The escape is one of the country s greatest mysteries. Betty Yu of KPIXTV reports. Subscribe to the CBS News Channel HERE: Watch CBSN live HERE: Follow CBS News on Instagram HERE: Like CBS News on Facebook HERE: Follow CBS News on Twitter HERE