Ontario Provincial Police are asking for the public’s help in a decades-long missing persons’ investigation. During the late 1990s, four seniors went missing in the Muskoka area of Ontario’s cottage country and authorities had suspected foul play was involved. But they hadn’t named any suspects at the time. Subscribe to CTV News to watch more videos: www.youtube.com/ctvnews Connect with CTV News: For the latest news visit: www.ctvnews.ca/ For a full video offering visit the CTV News Network: www.ctvnews.ca/video CTV News on Facebook: www.facebook.com/CTVNews CTV News on Twitter: twitter.com/CTVNews Watch CTV News on Twitter: twitter.com/WatchCTVNews CTV News on Google+: plus.google.com/+CTVNews/posts CTV News on Instagram: instagram.com/ctvnews/ CTV News on Pinterest: www.pinterest.com/ctvnews --- CTV News is Canada's most-watched news organization both locally and nationally, and has a network of national, international, and local news operations.