Jake, a black Labrador retriever search and resue dog, is seen in 2003 photo provided by his owner, Mary Flood. Jake, who helped search the rubble following the Sept. 11 attacks and later worked in Mississippi following Hurricane Katrina, died Wednesday, July 25, 2007. The results of an autopsy on his cancer-riddled body are part of a University of Pennsylvania medical study of Sept. 11 search-and-rescue dogs. (AP Photo/courtesy of Mary Flood) **NO SALES**