The doctor said he had a corpus delicti in his office, meaning a dead body. Corpus delicti are the elements that make up a crime. The dead body of a victim could be the corpus delicti, but a doctor would never say "I have a corpus delicti down there..." implying that "corpus delicti" is synonymous to a victim's corpse.
Schoolteacher Gilly misquotes the first line of Longfellow's Song of Hiawatha as "On the shores of Gitche Gumee;" the real line is "By the shores...."