Harrison Graham was well-known in his Philadelphia ghetto neighborhood. Sometimes, he would amuse the local children with his "Cookie Monster" puppet; other times they found him digging graves -- for dogs, he said -- in nearby vacant lots. Apparently, no one suspected that his simple mind might hide a darker urge, compelling him toward homicide.

In early August 1987, Graham quarreled with his landlord's nephew, afterward evacuating his apartment, nailing the door shut out of spite. Police were summoned on the afternoon of August 9, when neighbors filed complaints of a pervasive stench that emanated from the room. Inside, patrolmen found two strangled women's bodies, three more skeletons beneath a mound of garbage on the floor, another tied up in the closet.

Hand tracing done on the back of a partial letter on yellow legal paper.  Signed in full.