I'm quite envious that people have found some skeletons... the thing about skeletons is that they usually generate some extra sources of information - court proceedings, newspaper articles, etc. which add to the interest of researching.
The closest I have come so far is someone my mother unearthed some years ago - if I remember correctly he killed someone, fled the country for the Australian gold rush, leaving behind his wife and child, then got himself killed in some brawl in Australia while his wife and child were sailing out there to live with him. Not sure what happened to them afterwards. We have lots of information including newspaper cuttings etc., but despite Mam adopting him so far I've been unable to prove that he belongs to our family!