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7/25/72 | ATRIEL TOs ACTIUG DIRECTOR, FBI ATIN: FBE LABORATORY AND IDENTIFICATION DIVISION FROM: SAC, HFO (9-3068) CP) b6 Threatening Lett ostmarked : Addressed to Senator Edward Kennedy Boston Massachusetts - VICTIM I (G0:38) Sy ‘Enclosed for the Bureau is the original and four ; Serox, copies of five newspaper articles and stamped envelope containing references to MARY JO KOPECHNE and threatening remarks to the effect of killing Senator KENNEDY. Enelosed for Boston Gihich is designated Office of Origin) are elght copies of FE 302 reflecting receipt of above deseribed threatening letter. The Bureau has instructed that thig matter must . 4 Feceive vigorous and contimuqus attention until fully resolved. SNe Sumnary Teletype, from the Office of Origin, must reach the Bureau by Close of Business 8/8/72 immediately followed by an Sa, from the Office of Origin, auitable for dissenination. ; This waterial was received on 7/19/72 from SAIC LOUIS B, SIMS, Liaison Division, U.S. Secret Service (USSS), 1800 G | Street, N.W.7gWashington, D. C. (WBC), by SA — USSS hes made a check of their name files and yisual files of previously submitted letters with positive results. Possibly identical to Boston File 9-2244 and WFO file 9-2651 and Bureau file 9-50714. +. 4+ Bureau (Ene 5) %, 2~ Boston (Enc 8) 2- | L- 66~3029) Y2/38 qesideg 7? / 8 bs Fll7T2. Wb thee