Catch a JSON using Javascript

Question

Django creates a file called py views., in which I have the following function:

def carro_view(request,carro_slug=None):
    evento = Evento.objects.filter(time = '11:28:30').distinct()
    data = []
    for x in evento:
        data.append({
        "latitude": x.lat.replace(',', '.'),
        "longitude": x.lon.replace(',', '.'),
        "title": x.carro         
        })
    marker = {"markers": data }
    return HttpResponse(json.dumps(marker), content_type="application/json")

I wonder how I could get this JSON in a JS file, I know there is a getJSON(url, function(data)), but how could I use this to rescue the return of the function in py views.??