Key Highlights
- Carlos Portugal Gouvea, a Brazilian national, was arrested Oct.
- 2, after he allegedly fired a BB gun outside a Boston area synagogue the day before Yom Kippur.
- Gouvea told authorities at the time he was "hunting rats." He pleaded guilty Nov.
- 13 to illegal use of the air rifle, while his other charges of disturbing the peace, disorderly conduct and vandalizing property were dismissed.
- Harvard University suspended the professor pending the investigation.

