Just a few miles from me at a Delaware River campsite. Kids lucky enough to escape without injury. Bad luck overall for sure. These sites get flooded often and that may have helped to weaken the root system.
http://www.nj.com/news/index.ssf/2011/06/somerset_county_man_died_after.html
http://www.nj.com/news/index.ssf/2011/06/somerset_county_man_died_after.html