A student of Karl Popper, Professor Agassi was a prolific writer in philosophy of science and social science, among other areas. He taught for many years at Boston University, and then at York University, Toronto and Tel-Aviv University (concurrently for a long time at both). You can learn more about his career and work here. I will add links to memorial notices when they appear. Comments are open for remembrances from those who knew Professor Agassi, or who would like to comment on the significance of his work.
(Thanks to David Gordon for alerting me to Professor Agassi's death.)