http://www.news.com.au/dailytelegraph/story/0,22049,22447050-5001028,00.html
In summary, mother sends her son into their septic tank to fix a leak, he doesnt come back, she calls for help and the six men who come go one after another into the tank. They all suffocated and died from the fumes. Very sad...but at the same time, what an awful way to die :frowning: