Compulsive hoarding?
Has anyone heard of the Collyer brothers of New York City.....so interesting....
http://en.wikipedia.org/wiki/Collyer_brothers
I checked them out per your link. From the picture it looks like the only thing that 'ol Langley Collyer wasn't hoarding was teeth. LOL!
More on the Collyer brothers:
http://209.157.64.200/focus/f-news/1008564/posts