http://en.wikipedia.org/wiki/Aulus_Avilius_Flaccus
Aulus Avillius Flaccus was the Egyptian prefect appointed by Tiberius in 32 CE. His rule coincided with the Jewish massacre in Alexandria in 38 CE. According to some accounts, he may have encouraged the outbreak of violence. According to the Jewish philosopher Philo, Flaccus was later arrested and eventually executed for his part in this event.
