In a bedroom lay a white silk pillow - yellowed with age and emblazoned with the screaming eagle emblem of the Army's 101st Airborne Division. On the walls were pictures and plaques telling the story of a World War II veteran; in another room was an adjustable hospital bed and, on a windowsill, a worn Bible. That October day, Jim Bennett was looking for an investment, a house to buy, rehab, then rent or resell, as he has done with about 500 others over more than 20 years. But Bennett found much more at the modest, two-story rowhouse on Winton...