"from": {
        "name": "A",
        "id": "123456"
     },
     "to": {
        "data": [
           {
              "name": "B",
              "id": "123456789"
           }
        ]
     },

JSONObject recipientData = story.getJSONObject("to");
                JSONArray recipientArray = recipientData.getJSONArray("data");
                JSONObject recipient = recipientArray.getJSONObject(0);
                recipientName = recipient.getString("name");
                String recipientId = recipient.getString("id");

                // if the post's recipient is also a tagged user, then this is not a post to
                // another user's wall, but rather a status update. Leave the recipient blank then.
                if(story.has("message_tags")){
                    JSONObject tags = story.getJSONObject("message_tags");
                    for(int tagIdx = 0; tagIdx < tags.names().length() ; tagIdx++){
                        JSONArray tagArray = tags.getJSONArray(tags.names().getString(tagIdx));
                        String tagId = tagArray.getJSONObject(0).getString("id");
                        if(tagId.equals(recipientId)){
                            recipientName = "";
                            break;
                        }
                    }
                }