erc: who: Dallas (Tex.). Police Department. what: [Case Report for Prior Arrest of Jack Ruby] when: 19541208 where: https://texashistory.unt.edu/ark:/67531/metapth339961/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://texashistory.unt.edu/ark:/67531/