If Oswald were to receive legal assistance , whoever Oswald retained to be his lawyer then the Attorney-client privileges would be in place and by it's very nature , the attorney-client relationship affords a distinct , invaluable right to have communications protected from compelled disclosure to any 3rd party , including business associates and competitors , government agencies and even criminal Justice authorities ! If Oswald had retained a Lawyer then it would probably have been bad for certain individuals and probably bad for the Lawyer . Then there's Ruby who wanted the Warren Commission to take him back to Washington DC so he could talk and of course the WC denied Ruby the ' Trip to talk ' !