Hmmmm. Seems like it could be a caterpillar problem. Check the plants for any pesties.
I'll throw in the first vote for a bacterial leaf spot. The it has the "shotgun" look of dark dead tissue surrounded by yellow halos.
dark dead tissue surrounded by yellow halos.
Probably started from standing water on the leaves and moisture in the soil. Key is to stop the spread. I would remove the leaf, place the plant in full sun with good air circulation, get the soil dried out. If in a container, I'd also move the plant away from others and replace the top inch of soil, replacing it with fresh soil. Then spray with a fungicide and repeat every ten days or so.
Here is a link that shows typical flea beetle damage.
http://www.hort.purdue.edu/rhodcv/hort410/8001.jpg
As you can see the damage is very similar to what you are seeing.