Martin Hengel
The important scholar of Early Christianity and Second Temple Judaism Martin Hengel has passed away. (hat tip) From the standpoint of scholarship about Judaism, Hengel was well-known for his book Judaism and Hellenism: Studies in Their Encounter in Palestine During the Early Hellenistic Period. A short discussion of his views can be found here. Here is a good bibliography on the topic of Judaism and Hellenism.