“Lincoln in the Bardo,” won the Man Booker Prize

[RJNorton]

Regarding the location of the Carroll Tomb within the cemetery, the Kunhardts write in Twenty Days:

"Nothing could have been more peaceful or more beautiful than the situation of this tomb and it was completely undiscoverable to the casual cemetery visitor, being the very last tomb on the left side at the extreme far reaches of the grounds, at the top of an almost perpendicular hillside that descended to Rock Creek below. The rapid water made a pleasant rushing sound and the forest trees stood up bare and strong against the sky."

Based on this near-isolated location of the Carroll Tomb within Oak Hill Cemetery, I wonder if whoever were firing the rifle thought they were firing into vacant land? (Just a guess)