A unidentified woman's dismembered remains kept investigators puzzled for 35 years. But with new technology, they now know the name to the grandmother who seemed to have vanished without a trace. Subscribe to WCVB on YouTube now for more: http://bit.ly/1e8lAMZ Get more Boston news: http://www.wcvb.com/ Like us: https://www.facebook.com/wcvb5 Follow us: https://twitter.com/WCVB Instagram: https://www.instagram.com/wcvb5/