56-year-old who played Joanie on 'Happy Days' found unresponsive, authorities say : http://rss.cnn.com/~r/rss/cnn_topstories/~3/eo24hb9Gu4s/index.html http://www.cnn.com/2017/04/22/entertainment/happy-days-star-erin-moran-dead/index.html