It was a sad day in the garden. There is no doubt, we have late blight in our tomatoes and probably also on our potatoes.
As you can see, late blight doesn't just affect the stems and leaves, it also affects the fruit. Sometimes, if the spores remain, even green tomatoes without any obvious signs will turn brown once taken off the vine.
For more information check out this article from BC Agriculture.
I couldn't bring myself to pull out all the plants and dispose of them (as recommended). Instead, I pruned and cleared away as much as I could, hoping to harvest at least some tomatoes. I bagged what I could and put it in the garbage to avoid spreading the disease through the compost.