I don't know what to make of the story. But I do have annecdotal evidence of a dead body going undetected. At the university where I work cleaning staff entered a dorm room (in a suite) and found a dead student. He had died of an apparent overdose and they suspect it had been two months. The dorm has very thin wall, and is not well built, yet no one (including his suite mates?) noticed he was dead for two months.
I would hope body would notice if i turned up missing for two months.......