I agree with Boris that for Virginia USA the general habitus best fits Tribe Platynini - Subtribe Platynina. I addition to the characters already stated and as suggested by this image, this group has narrower forebodies (head + prontum) compared to Pterostichus. Body length of 8 mm is too short for most in genus Platynus and so I would favor a smaller Agonum sp. It is important that carabid image submitters become familiar with the important diagnostic character of crossed apical elytral epipleura that Pierre-Marc cited, i.e., crossed in genus Pterostichus vs not crossed in tribe Platynini. This tiny feature is rarely visible in habitus photographs but can be easily seen under extra magnification.

I think it is a Pterostichus. It's sure not a Lebiini cause the elytra arn't truncated : ok, hard to see on this picture, but anyway, as well as I know, the only Lebiini of 8 mm have a totally different pronotal shape. For the difference between Platynini and Pterostichus, it's mostly a question of plica in the apico-lateral portion of the elytra. But we never see (or nearly so) this caractere on picture. So it's a question of general apparence often (based on the observation we done before), so hard to put in word.

The elytra (Est-ce que c'est la carapace?) was damaged. I'll show you another angle once I get back home tonight.

Yes, exactly. We can see on this picture that it is damaged, but anyway, it's always better to have more than one angle for do the identification. And if you have only one, the best is generaly a picture from upside (for beetles).

I tagged a different view. Thanks!