Complex sentence: His career as a teacher ended abruptly after only a few weeks when he was accused by his roommate of stealing a pocket watch, whereupon he spent six weeks in jail in Chemnitz and his license to teach was revoked permanently.
Split into simpler sentences: His career as a teacher ended abruptly after only a few weeks when he was accused by his roommate of stealing a pocket watch. Therefore he spent six weeks in jail in Chemnitz and his license to teach was revoked permanently.