</s>Los Angeles Flio 16-1864 P On May 20th Investigator R. B. Maynard interviewed BRENT COLCORD on- cerring the anonymous message. COLCOLD, after perusing the envelope, stated he thought MERLE HARTON HATSON could have written the letter because on May 10th to had had an argument with him. COLORD said HATTISON let a hot horse drink a half-pall of water, which was con- travey to the training methods practiced by COLORD. and want to work for Robert Wagnerfield the same date. Investigator Hayman interviewed MATTISON on May 20, 1968, at which time- investigator Haymans interviewed MATCHISON on may 20, 1969, at what he said he felt COOLORD said he was gont in handling his investigation had to feed him three years and he felt this letter was one way he could let people know how he felt about BREW COLCOLORD. MATTERSON said he has worked with thoroughbred horses for about three years has been licensed in New York, was one year ago. Letters, it was Investigator Hayman's opinion that subject denied writing any other anonymous illness of some kind. TREE files in Los Angeles show subject was fingerprinted at Santa Anita on March 12, 1968. with the return address was the Reno, Nevada Police Department- ment on April 9, 1963, charge, decelerately, $30 or 30 days, tino paid, CII #232510. Accord- ing to CHIRS record, subject is described as follonl Race White Race of Birth White Plate of Birth. 10/11/12 Plate Of Birth. Height Weight 5/8/18 Weight Weight Byas! Blue Andite, was shown on May 21, 1968 (Gordon Gilson, who handled the stable mail at Santa Andite. was shown the envelope from MATTSON, and was who recognized the handwriting and the styles of writing the being Anteata meetings with letters that had been posted at the stable mail room during the Santa Anita meeting. (Glison said these letters were addressed to each people as the President of the United States, Secretary of Defense, and the Rose- adressresset, Clisson said he did not know the author of the letter. adresset. Clisson Said she did notknow the authorof the letter of the Lettera. On May 19, 1968 the writer contacted by Anthony Sherman of the U.S. Secret Service, and Agent Voyles of the Winter. Neither agency had a had a copy of HERLES HATTON. Mr. Sherman said he would communicate with their Washington office to determine whether sundial type messages had been referred from the office of the US. Presidency, Mr. <loc_70><loc_774>report be submitted to him for examination. Mr. Sherman indicated that he was checking on report be substituted to him as the examination. He has been written anonymously on envelopes with <loc_70><loc_820>red and blue ink.

Summary  
The documents detail investigative activities surrounding the 1968 assassination of Senator Robert F. Kennedy, focusing on interviews with witnesses, background checks of individuals linked to threats, and forensic analysis of hotel and racing-related records. Key figures include Sirhan Bishara, later identified as the assassin, whose employment history as a groom for trainer Gordon Bowsher was scrutinized by the FBI and California Horse Racing Board. Investigations explored potential connections between Bishara and Jordan-Israel tensions, with reports noting his emotional volatility during political disputes. Anonymous letters and threats were examined, including those attributed to Merle Marion Matteson, who had prior legal issues in Nevada and conflicts over training methods. The Ambassador Hotel’s security and layout were analyzed, with attention to Room 109, a plastic key bearing "BRICK'S" name, and trash collection schedules on East Howard Street. Hospital records from Central Receiving Hospital were reviewed for victims and medical personnel present during the shooting. Administrative forms related to horse racing licenses and FBI inquiries into potential threats were also documented.  

Key People  
- Merle Marion Matteson (linked to anonymous letters, prior charge in Reno, Nevada)  
- Sirhan Bishara (suspect in RFK’s assassination, employed by Gordon Bowsher)  
- Gordon Bowsher (trainer who hired Bishara)  
- Mrs. Dore Sasson (hotel manager reporting BECK’s activities)  
- BECK (individual claiming affiliation with Kennedy campaign)  
- SIRIAN B. STIRIAN (subject of FBI investigation)  
- D.M. DILL (LAPD Homicide officer, described as uncooperative)  
- David Esquitil (claimed RFK intended to exit hotel via kitchen)  
- Jim Lowe (campaign worker allegedly informing Esquitil about RFK’s route)  
- Maryan Kaitan Koltan (Santa Monica contact linked to THE KAIBAR KHAN)  
- Mrs. Christina Adams (repeated caller alleging supernatural ties to Bishara)  

Key Locations  
- Ambassador Hotel, Los Angeles (site of assassination and alleged exit route discussion)  
- Central Receiving Hospital, Los Angeles (hospital records for victims and medical personnel)  
- Santa Anita Race Track (fingerprinting records for Matteson)  
- Reno, Nevada (prior charge against Matteson)  
- East Howard Street, Pasadena (trash collection schedules investigated by FBI)  
- Pasadena Sanitation District (involved in trash collection inquiry)  
- Los Angeles County Jail (custody of Sirhan Bishara)  
- Santa Monica, California (potential link to THE KAIBAR KHAN)  

Key Events  
- Interviews with witnesses regarding anonymous threats and hotel activities on the night of RFK’s assassination.  
- Fingerprinting and background checks of Merle Marion Matteson by California Horse Racing Board and FBI.  
- Investigation into Sirhan Bishara’s employment history, custodial conditions in Los Angeles County Jail, and potential ties to Jordan-Israel tensions.  
- Examination of hotel security details, including Room 109 and trash collection schedules on East Howard Street.  
- Review of hospital records for victims and medical personnel present during the shooting.  
- Grand jury proceedings to review evidence against Sirhan Bishara.  
- Claims by David Esquitil that RFK intended to exit the Ambassador Hotel via the kitchen.  
- Repeated calls from Mrs. Christina Adams alleging supernatural connections to Bishara.  

Key Organizations  
- Federal Bureau of Investigation (FBI) (investigated threats, hotel records, and potential suspects)  
- California Horse Racing Board (conducted background checks on stable employees)  
- Los Angeles Police Department (LAPD) (involved in homicide investigation and witness interviews)  
- Los Angeles County Sheriff’s Office (monitored Sirhan Bishara’s custodial conditions)  
- U.S. Attorney's Office, Los Angeles (coordinated with FBI on legal proceedings)  
- Pasadena Sanitation District (investigated trash collection schedules)  
- Thoroughbred Racing Protective Bureau (reported on John Shear’s findings regarding Bishara)  
- Los Angeles County Grand Jury (reviewed evidence against Sirhan Bishara)

RFK Declassified Files

56-la-156_sec_002_ser_251-500-part_3_of_8.pdf

Document Summary

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