I'm going to make a guess at this.,,,, "Verticillium Wilt". There are sooooooo many things it could be though, biological or otherwise. It has been my experience that tomatoes do not grow their best is such small containers. They prefer full sun and planted in the ground so their roots can expand. You may have to start over with these.....

It looks like nitrogen or other deficiency to me -- they look like they desperately need fertilizer. How often have you been feeding them? I am no expert on growing in containers but that is certainly too small a container for a mature tomato plant.

The containers are square containers. They measure 12x12x18 and they hold much more soil than a 5 gallon container. They hold equivalent to about 8-9 gallons. The container size isn't the issue. I posted on another forum and numerous people felt it was a nutrient deficiency. I've increased the feedings. Also I have started introducing micro nutrients. Just today I noticed blossom end rot on some of the tomatoes and that confirms a micro nutrient issue. I've blasted them with some calcium. I'm also controlling the PH levels hoping that they are savable. Other people felt wilt was not the issue although I was thinking it was verticillium wilt. Crossing my fingers hoping this works out... I wish I could grow in the ground but live on the 12th floor of an apartment so this is my only option.

IMHO that is definitely not verticillium wilt.

Thanks Peter... From what I am gathering they are savable and that makes me happy