Anyone else familiar with this case? Sheila and Katherine Lyon, sisters, aged 11 and 13, walked to a shopping mall near their Wheaton, MD home in March 1975 and have never been seen again. I believe they were actually last seen leaving the mall, and then again a possible sighting a week or so later. Someone saw two girls in the backseat of a car bound and gagged, fitting their description. There have been no new leads since. I can't imagine the torture their family has gone though, losing two children and not knowing if they are alive or dead. Sorry I don't have a link but if you do a Google search you will find their story.