(now second time writing this)
Thanks man! The titles is in reference to the final words in the second to last chapter. It goes something like, "It was after we started with Gatsby toward the house that the gardener saw Wilson's body a little way off in the grass, and the holocaust was complete"
Backstory: Basically, the guy by grave is Wilson, who thinks that Gatsby (the man at the pool) murdered his wife.
It actually wasn't an "assignment". I told a friend about the vision I had for this scene, and he loved it. So we asked the teacher if we could do it and get extra credit and she said yes, hah.