Reportedly Stanley Ann Dunham died November of 1995.
http://en.wikipedia.org/wiki/Ann_Dunham
Internet searches by freepers in 2008 showed Stanley Ann Dunham's social security number was still being used.
Also, one freeper discovered a NY condo registered in her name during the same time period.
This information is posted in one of the many 2008 FR threads.
The date of Stanley Ann Dunham's death in November of 1995 is corroborated by (1) an obit which appeared in the Honolulu Star Advertiser and (2) the Social Security Death Index.
If a NY condo was registered in her name or her SS# was being used more than a decade later, it would be highly suspicious of identity theft.