Teacher says stalking ex-boyfriend used GPS devices to track her

Police say a middle school teacher was allegedly stalked by an ex-boyfriend who tracked her using GPS devices secretly placed on her car. Subscribe to WCVB on YouTube now for more: http://bit.ly/1e8lAMZ Get more Boston news: http://www.wcvb.com Like us:   / wcvb5   Follow us:   / wcvb   Instagram:   / wcvb5