Alive on Friday...Near Death on Wednesday

[z_willus_d]

Yes, I had a thriving tomato plant (don't ask me what variety, another sob story to that) last Friday evening leaving the work garden plot for a nice long four day weekend. This morning, Wed 5/30, the plant was as near death as anything I've seen. I'm not sure what hit it, but thankfully the surrounding other thirteen plants seem unaffected. I pulled the plant without so much as a thought.

The rate at which this plant went from healthy to deathly scares me. Any idea from the pics what this could be? Zoom in on the pics, you see the wilting brown top-leaves and dark brown lesions on the stems and branches. So sad to see this happen to such a previously beautiful and healthy robust vine.

Thanks,
Naysen