jfk first day evidence i looked for information on a book called first day evidence written by gary savage several book reviews noted the following mr savage is the nephew of a retired member of dallas police crime lab who processed much of the evidence gathered the day of the jfk assassination nov savage located a number of documents and photographs previously not published that were in official dallas police files or the personal files of retired police officers jfk first day evidence consists of those documents and photographs with commentary on the investigative activities of the dallas police on the day of and shortly after the assassination this book appears to contain good evidence during the critical period i am looking forward to reading it