</s>SAC, Los Angeles (56-156) 8/13/68 Director, FBI (62-587) Mr. S. Sautz KNSALT Laboratory 680 814022 Attached anonymous communication was received from U. S ., Secret Service under date of August 8, 1968. A copy of this communication should be made available. to the Los Angeles prosecutor's office. The FBI Laboratory is conducting a search of the Anonymous Letter File and you will be advised of results. Enclosures - 4 HAS:Jls (5) .1.13 2 006H.88 .1:1.1/3/4/4U/9/1054 4F.C.M. 2025 RELEASE UNDER E.O. 14176

Summary  
The document contains FBI laboratory reports and internal communications related to handwriting analysis of letters and documents connected to the assassination investigation of Senator Robert F. Kennedy (RFK). Key elements include comparisons of handwritten samples attributed to DJURO STOKIC, SAIDALLAH SIRIAN, and SHARIF B. SIRIHAN. The FBI sought to determine if these individuals authored specific communications, including a letter allegedly signed by Sharif B. Sirhan that contained pro-Arab and anti-Semitic content. Handwriting analysis conducted by the FBI Laboratory found the writing on certain documents too indistinct for conclusive comparison with known samples. The Secret Service was noted as not providing photographs referenced in some materials. The investigation involved multiple FBI field offices, including Los Angeles, and included correspondence with the U.S. Department of Justice and other agencies. Documents were retained for further analysis due to inconclusive results.  

The document also references an anonymous letter addressed to Senator Edward M. Kennedy on August 8, 1968, which was forwarded to the Los Angeles prosecutor’s office. The FBI Laboratory examined a white envelope and a folded letterhead bearing handwritten Serbian text, comparing them to the Anonymous Letter File without identifying any matches. A Serbian nationalist, Djuro Stokic, is linked to threats against President Lyndon B. Johnson and correspondence referencing the assassinations of John F. Kennedy and Robert F. Kennedy. The FBI requested comparisons between Stokic’s handwriting, photographs, and letters dated 1966–1968 to determine if he authored the anonymous communication.  

Key People  
- **Djuro Stokic**: A Serbian nationalist linked to threats against President Johnson and correspondence referencing the assassinations of John F. Kennedy and Robert F. Kennedy.  
- **Edward M. Kennedy**: U.S. Senator targeted in an anonymous letter containing threats and demands for financial assistance.  
- **John F. Kennedy** and **Robert F. Kennedy**: Mentioned as victims of assassination plots, referenced in Stokic’s letters.  
- **V.N. Progelj**: Translator of Serbian correspondence related to the anonymous communication.  
- **Saidallah Sirian**: Individual linked to welfare fund receipts and handwriting samples.  
- **Sharif B. Sirihan**: Subject of handwriting comparisons; alleged brother of Sharif B. Sirhan, a suspect in RFK’s assassination.  
- **John Edgar Hoover**: FBI Director involved in the investigation.  
- **Richard Nixon** and **Hubert Humphrey**: Mentioned as recipients of communications related to the investigation.  

Key Locations  
- **Los Angeles, California**: FBI office involved in the investigation; location of the prosecutor’s office that received the anonymous letter.  
- **Washington, D.C.**: Headquarters of the FBI and U.S. Department of Justice.  
- **Paris, France**: Location of the U.S. Embassy and Secret Service liaison office, referenced in Serbian-language communications.  
- **Pasadena, California**: Linked to the Sirian family and police involvement.  
- **Yugoslavia (Serbia)**: Stokic’s birthplace and country of origin.  

Key Events  
- **August 8, 1968**: Secret Service received anonymous communication addressed to Senator Kennedy; forwarded to Los Angeles prosecutor’s office.  
- **August 13–23, 1968**: FBI Laboratory conducted fingerprint and handwriting analysis on documents related to the anonymous letter and Stokic’s correspondence.  
- **1966–1968**: Stokic applied for a U.S. visa, faced rejection due to medical ineligibility, and sent letters threatening President Johnson and expressing intent to avenge Kennedy brothers.  
- **1972**: Stokic claimed he would become president of the United States and avenge his brothers’ deaths.  
- **Handwriting analysis of letters dated 1966–1968**: FBI sought to determine authorship of communications, including a letter allegedly signed by Sharif B. Sirhan containing anti-Semitic and pro-Arab rhetoric.  
- **Examination of welfare fund receipts and police forms**: Related to the Sirian family’s involvement in the investigation.  

Key Organizations  
- **Federal Bureau of Investigation (FBI)**: Conducted laboratory analysis, coordinated with other agencies, and requested comparisons of handwriting samples.  
- **U.S. Secret Service**: Involved in investigating threats against political figures, including President Johnson.  
- **U.S. Department of Justice**: Oversaw FBI operations and legal proceedings.  
- **American Embassy, Paris**: Facilitated visa applications and liaison between U.S. authorities and foreign entities.  
- **Pasadena Police Department**: Involved in police forms related to the Sirian family’s activities.

RFK Declassified Files

62-hq-587_bulky_1214_sec_001_ser1214only-part_11_of_11.pdf

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