Fotis A. Kafatos was an intellectual giant who made immeasurable contributions to the fly and larger scientific communities. A Memorial Biography of his life, authored by Christos Louis and Marian Goldsmith, has recently been published by the National Academy of Sciences.
Find the PDF at http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/kafatos-fotis.pdf.
The memoir is featured on the memoirs page on the NAS website: http://www.nasonline.org/publications/biographical-memoirs/.