Merckle was No . one on Forbes list of world 's richest people . CNN 's Frederik Pleitgen in Germany and Alysen Miller in London , England , contributed to this report . Adolf Merckle 's net worth estimated to be $ 12.8 billion to $ 9.2 billion . Billionaire was killed by a train in German town of England . Family says financial woes `` broke the passionate family business man ''
Merckle was No . one on Forbes list of world 's richest people . Adolf Merckle 's net worth estimated to be $ 12.8 billion to $ 9.2 billion . Billionaire was killed by a train in German town of England . Family says financial woes `` broke the passionate family business man ''