</s>HEBUTEL TO ALL OFFICES TODAY RE LAUNDRY MARKS. THIRNO SEAL SALESMAN FOR SOUTHERN CALIF, REVEALED FRED RON THERNO SEAL SALEASMAN FOR SOUTHERN CALIF, ONE EIGHT FOUR WINE HAVATRA, NORTHRIDGE, CALIFY, TELEPHONE R. T. SEVEN B. SIX TREE FOUR OR E ENTREE DASH EIGHT MINE SIX. LOS ANGELES CONTACT RAUPACH FOR HIS CUSTOMER LIST IH ANY INFORMATION RE LAURENT MARK NEWTONED IN RETEL. DETERR IF HIS FUSUSTOMIER LIST WOULD COVER ALL USERS OF THERMO S HIS TERRITORY. SCHAMENTO IS CONTINUING TO CONTACT LAUNDRIES. END MLB FBI'LOS ANG. 2025 RELEASE UNDER E.O. 14176

Summary  
The documents detail FBI investigations into potential threats against Martin Luther King Jr., focusing on suspect tracking, evidence collection, and inter-agency coordination. Informants in Compton, California, reported no direct threats against King but were monitored for suspicious activity. Evidence included laundry tags with thermo-seal markings traced to Textexile Marking Machine Company and duckbill pliers recovered from the crime scene. The FBI sought to identify the source of these items, contacting hardware companies and laboratories. Suspects like John Willard, an attorney linked to racist extremism, were pursued but later eliminated due to lack of evidence. Anti-Castro figures such as Allen Roy Peterson and Roy Harrgraves were investigated for potential connections to the assassination plot, with Peterson tied to military equipment and the USS Kenzie. FBI communications referenced case files (e.g., 44-1574), administrative forms (FD-39, FD-209), and efforts to locate fugitives like Lyman/Theral Burns through fingerprint comparisons and prison records. Social security numbers were noted in redacted form but not included in the summary.  

Key People  
- **Jerry Hedgeman**: Florida resident who reported Lyman’s threats against MLK.  
- **Lyman/Theral Burns**: Suspect linked to firearms, forgery charges, and alleged threats against MLK; also known by alias David Joseph Jiron.  
- **Robert Lyman** (father), **Arlene Lyman** (mother): Parents of Theral Burns; military service details noted.  
- **John Willard**: Attorney in South Carolina, described as a racist and extremist, linked to a suspect in the assassination.  
- **Allen Roy Peterson**: Allegedly connected to military equipment and anti-Castro activities; had ties to the USS Kenzie.  
- **Roy Harrgraves**: Involved in anti-Castro operations in Florida and reported to have been in Los Angeles organizing such movements.  
- **Gerald Patrick Hering**: Contacted FBI about letters suggesting a sniper plan to assassinate King in Memphis, Tennessee.  

Key Locations  
- **Compton, California**: Liquor store where informants were contacted regarding potential violence.  
- **St. Petersburg, Florida**: Hedgeman’s location and Lyman’s last known address.  
- **Memphis, Tennessee**: Proposed location for the assassination as per intercepted letters.  
- **Los Angeles, Sacramento, San Diego, Birmingham, Memphis, Birmingham**: FBI offices involved in investigations.  
- **Chino State Prison, Vacaville, California**: Facilities mentioned in Lyman’s criminal history.  
- **Syracuse, New York**: Manufacturer of the thermo-seal marking machine found on laundry tags.  

Key Events  
- **FBI Investigations**: Efforts to track Lyman, including fingerprint comparisons and prison record checks; inquiries into thermoseal machine markings and duckbill pliers found at the crime scene.  
- **Informant Contacts**: Monitoring of liquor store informants in Compton for threats against MLK.  
- **Suspect Elimination**: John Willard was eliminated as a suspect due to lack of evidence, while anti-Castro figures like Peterson and Harrgraves remained under scrutiny.  
- **Military Equipment Links**: Peterson’s ties to the USS Kenzie and military equipment raised suspicions about his potential involvement in the plot.  
- **Case File Management**: Reference to administrative forms (FD-39, FD-209) and case files (e.g., 44-1574) for tracking suspects and evidence.  

Key Organizations  
- **FBI**: Central to the investigation; offices in Los Angeles, San Diego, Sacramento, Memphis, and Birmingham involved.  
- **Textexile Marking Machine Company**: Manufacturer of the thermo-seal machine used on laundry tags found at the crime scene.  
- **U.S. Air Force**: Mentioned in Lyman’s military service records.  
- **California Department of Corrections**: Involved in prison record checks for Lyman.  
- **USS Kenzie**: Military vessel linked to Allen Roy Peterson’s alleged connections with anti-Castro activities.

MLK Declassified Files

44-la-1574_742142_001-01-part_3_of_6.pdf

Document Summary

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