Santa Clara dog park closed after dog dies; multiple other dogs get sick

Katie Nielsen reports on dogs coming down with a mystery illness after visiting a Santa Clara dog park. Website: http://kpix.com/ YouTube: http://www.youtube.com/CBSSanFrancisco Facebook: https://www.facebook.com/CBSSanFrancisco Instagram: https://www.instagram.com/kpixtv/ Twitter: https://twitter.com/KPIXtv