"OAK HARBOR, Wash. -- The second twin sister involved in a deadly car crash on Highway 20 near Anacortes on Halloween night has died."
http://www.king5.com/news/local/Second-twin-in-SR-20-crash-dies-from-injuries-231508471.html
http://www.komonews.com/news/local/Second-sister-dies-from-Halloween-crash-231512221.html
http://www.whidbeynewstimes.com/news/230229441.html
http://blogs.seattletimes.com/today/2013/11/2nd-sister-dies-from-oct-31-crash-near-anacortes
The 2 sisters died on different days, but were in the same car accident.
2 out of 3 brothers died on the same day from the same kind of medical condition.
http://jf999.blogspot.ca/2011/11/3-brothers-suffer-heart-attacks-on-same.html
http://jf999.blogspot.ca/2010/05/son-father-and-grandfather-all-born-on.html
http://jf999.blogspot.ca/2010/09/sisters-give-birth-to-boys-on-same-ward.html
http://the-intersection-point-of-reality.blogspot.ca/2012/09/life-and-death.html