Complex sentence: Among those at risk are Lee's maternal grandmother, Mrs. Lupowitz, and even though Charlie Chan's son is, as is usually the case, rarely accurate in reading clues, he has the full love and support of Cordelia, his beautiful fiancee.
Split into simpler sentences: Among those at risk are Lee's maternal grandmother, Mrs. Lupowitz. Even though Charlie Chan's son is, as is usually the case, rarely accurate in reading clues, he has the full love and support of Cordelia, his beautiful fiancee.