1.   A lot of people saw him as a quiet loner, but he delighted in entertaining.

2.   But a portrait is emerging of a journey studded with job failures and evictions, traveled by a quiet loner who was always angry and always armed.

3.   He is a quiet loner with a palpable sadness.

4.   Other professors also remembered him as a quiet loner, unusually dedicated to mathematics even by the standards of graduate students.