Cannot parse it as a JSON

jsx_json_twitter

    var tweetJsonStr = 
'{\n' +
'    "results": [\n' +
'        {\n' +
'            "text": "\u58f2\u308bSale\u305c\u3088\uff01\u30bd\u30d5\u30c8\u30d0\u30f3\u30af\uff01 \u25a0\u8a2d\u7acb1976\u5e7411\u670825\u65e5\uff6536\u671f\u306e\u30bd\u30d5\u30c8\u30d0\u30f3\u30af\u682a\u5f0f\u4f1a\u793e\u3092\u58f2\u308a\u307e\u3059\uff01\u3000\u25a0\u7fa9\u63f4\u91d1\u637b\u51fa\u306e\u305f\u3081\u58f2\u308a\u307e\u3059\uff01\uff01\n\u25a0\u308f\u304c\u793e\u3088\u308a\u53e4\u3044\u30bd\u30d5\u30c8\u30d0\u30f3\u30af\u3001\u3054\u5b58\u77e5\u3067\u3059\u304b\uff1f\n2012/9/2 11:56", \n' +
'            "from_user_name": "\u30bd\u30d5\u30c8\u30d0\u30f3\u30af", \n' +
'            "profile_image_url": "http://a0.twimg.com/profile_images/1851931672/SB__8_normal.png", \n' +
'            "created_at": "Sun, 02 Sep 2012 02:56:41 +0000" \n' +
'        } \n' +
'    ] \n' +
'} \n';
    var tweetData = JSON.parse(tweetJsonStr);