parsear json con jsonp

[mktalternativa]

hola estoy usando jsonp y en un ejemplo me funciona bien pero en otro no,

este esta ok

Código:

 <script>
      var map;

      function initialize() {
        map = new google.maps.Map(document.getElementById('map_canvas'), {
          zoom: 2,
          center: new google.maps.LatLng(40,-187.3),
          mapTypeId: google.maps.MapTypeId.TERRAIN
        });

		
        // Create a <script> tag and set the USGS URL as the source.
        var script = document.createElement('script');
        script.src = 'http://67.23.231.40/~bplus/brown%20plus%20joven/2/conectando.php';
        document.getElementsByTagName('head')[0].appendChild(script);
      }
	  
	  

      // Loop through the results array and place a marker for each
      // set of coordinates.
      function jsoncallback(results){
        for (var i = 0; i < results.length; i++) {
          var earthquake = results[i];
          var coords = earthquake.distrito;
          var latLng = new google.maps.LatLng(earthquake.distrito);
          var marker = new google.maps.Marker({
            position: latLng,
            map: map
          });
        }
      }
      google.maps.event.addDomListener(window, 'load', initialize);
    </script>

para este json

Código:

eqfeed_callback({"type":"FeatureCollection","metadata":{"generated": 1403827457000,"url": "http://earthquake.usgs.gov/earthquakes/feed/geojsonp/2.5/week","title": "USGS Magnitude 2.5+ Earthquakes, Past Week","subTitle": "Real-time, worldwide earthquake list for the past week", "cacheMaxAge": 60},"features":[

{
  "type": "FeatureCollection",
  "features": [
    { "type": "Feature",
      "geometry": {"type": "Point", "coordinates": [102.0, 0.5]},
      "properties": {"prop0": "value0"}
    },
    { "type": "Feature",
      "geometry": {
        "type": "LineString",
        "coordinates": [
          [102.0, 0.0], [103.0, 1.0], [104.0, 0.0], [105.0, 1.0]
        ]
      },
      "properties": {
        "prop0": "value0",
        "prop1": 0.0
      }
    },
    { "type": "Feature",
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [ [100.0, 0.0], [101.0, 0.0], [101.0, 1.0],
          [100.0, 1.0], [100.0, 0.0] ]
        ]
      },
      "properties": {
        "prop0": "value0",
        "prop1": {"this": "that"}
      }
    }
  ]
}

pero mi json es este

Código:

([{"id":"203","name":"ZUH","rubro":"42938985","direccion":"E. ADROGU? 1107 LOCAL 3","telefono":"","localidad":"ADROGUE","local":"ALMIRANTE BROWN","direccioncomp":"E. ADROGU? 1107 LOCAL 3  ADROGUE  ALMIRANTE BROWN","distrito":"Not Found (try again, you may have done too many too fast)","direccioncompleta":"10% EN GENERAL EN EFECTIVO, EXCEPTO EN LIQUIDACI?N.","geo":"","descuento":"","latitud":null,"longitud":null},{"id":"202","name":"VIENTO ORIENTAL","rubro":"42142292","direccion":"PELLERANO 726","telefono":"","localidad":"ADROGUE","local":"ALMIRANTE BROWN","direccioncomp":"PELLERANO 726  ADROGUE  ALMIRANTE BROWN","distrito":"-34.7988634,-58.3911604","direccioncompleta":"15%AL MEDIOD?A LOS LUNES, JUEVES Y VIERNES. 20% LOS MI?RCOLES TODO EL D?A. DTOS SOBRE PRECIO DE LISTA, NO ACUMULABLES CON OTRAS PROMOCIONES.","geo":"","descuento":"","latitud":null,"longitud":null}] )