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* . . = Ya STATES DEPARTMENT o@usrice: FEDERAL KHUREAW UF INVESTIGATION San Francisco, California February 5, 1974 SYMBIONESE LIBERATION ARMY — - WESTERN REGIONAL YOUTH UNIT (SLA) Re San Francisco memorandum dated November. 9, 1973. On November 12, 1973,. , The Response Marketing up, Oorated, 4th co) ; , or, 770 Mission Street, San Francisco, California, made available an envelope addressed to "Muhammed Speaks", 634 79th Street, Chicago, Illinois, postmarked November 7, 1973, with return address, "The Response Marketing Group, Incorporated, 770 Mission Street, San Francisco, California". The envelope contained a four page photostat letter from the Symbionese Liberation Army, Western Regional Youth Unit (SLA), communique number one dated November 6,.1973. The envelope had been marked "Return to Sender", from Chicago, Illinois, and bore the stamp and notation, “Addressee Unknown". Stated that the letter had not originated wit Marketing Group, Incorporated, and had not been opened by her. She also made available an envelope addressed to "The Black Scholar", Box 31245, San Francisco, California, post- ‘marked November 7, 1973. The envelope bore the return address of “The Response Marketing Group, Incorporated, 770 Mission Street, San Francisco, California", and had the stamp "Return to Writer" with the notation "Moved, Not Forwardable". The envelope had not been opened and was found to contain a . photostat four page letter identical to the one previously . mentioned .above. noted that their office had .. previously been fu hotostat of communique number one addressed to the "San Francisco Chronicle". She stated that it was her opinion that the person typing the envelopes in these communiques was not identical to the person typing -the letter. She pointed out that the spacing and typing of the four page letter had obviously been done by an experienced typist while erasure marks had appeared on the communique addressed to "The Black Scholar" and Mission in the envelope to the "San Francisco Chronicle” had not been é ay a - Sources whose identities are —Ty _ concealed herein have furnished 795 WI - reliable information in the past Fe oO except where otherwise noted, Sa ee ee Se Se, a ee This document contains neither recommendations nor conclusions of the FBI. It is the property of the FBI and is loaned to your agency; it and its contents are not to be distributed outside your aqency. 2 tat . /5z00 ; JIS OO thi gE