I have some dialogue between two people (a clerk and a person called John Doe). I want the clerk to say to John: "You're John Doe. Still." So I've punctuated it like this:
"You're John Doe. Still," said the clerk, whom John had talked to a few times before.
"Yes, I am."
The trouble is having that comma after the "Still". It sort of makes it look like the sentence is going to continue, as in "Still, I don't care who you are" or whatever. However, his sentence just ends, "Still."
How can I give that sentence the kind of finality I want with the full stop, rather than using a comma?