Just discovered this. Over on 2point8, Michael David Murphy was in Tucson this past spring. looking at Garry Winogrand's contact sheets, particularly what he did at the end of his life. He writes:
No one’s really waded in and made sense of the posthumous images yet, and I wanted to see what they looked like, how messy they might be. There’s something about the “story” of what happened in the last years of Winogrand’s life that’s intriguing. How a photographer, knowing that he’s running out of time, would increase the pace, and leave thousands of undeveloped rolls to be developed after his passing.
Michael writes with great lucidity in his blog about the process of street photography, and he has a lot to bring to the table regarding Winogrand. Check it out.