The call Jeannene Anderson always dreaded came on a day in March. A New Orleans homicide detective across the line barely finished the words "death investigation," when Anderson fell to the floor thinking of her daughter's peregrine life. Julia, who for years had lived as a transient, would not be coming home. New Orleans police found her in a McDonald's parking lot the evening of March 19, clutching her neck from a stab wound authorities say was inflicted by another transient, 38-year-old Christopher Hutsell. She was rushed to surgery but died several hours later. "People in this situation, where you've...