Arnstein: Tod durch Kohlenmonoxid-Vergiftung - Bayern - SZ.de
https://www.sueddeutsche.de/bayern/unterfranken-tragoedie-von-arnstein-jugendliche-starben-an-kohlenmonoxid-vergiftung-1.3357751Berkeley Couple Found Dead In Apartment Identified – CBS San Francisco
http://sanfrancisco.cbslocal.com/2017/01/24/berkeley-couple-found-dead-identified-roger-valerie-morash/Russian girl, 8, orphaned after her ENTIRE family is wiped out by deadly gas caused by rotting potatoes in the cellar | Daily Mail Online
https://www.dailymail.co.uk/news/article-2409920/Russian-girl-8--orphaned-ENTIRE-family-wiped-deadly-gas-caused-rotting-potatoes-cellar.htmlThree people found dead in water tank near Gunning
https://www.dailytelegraph.com.au/news/nsw/three-people-found-dead-in-water-tank-near-gunning/news-story/901b42e319504c62a1ffd9f9ec28fdfc