1.   Some youngsters who contracted the disease had fallen from their bikes, but this was nothing more than a tragic coincidence.

2.   In what police say was a tragic coincidence, gunfire was heard from a house across the street.

3.   But genetic analysis showed they were unrelated, he said, so it was simply a tragic coincidence.

4.   By a tragic historical coincidence, this process of religious radicalization on the Arab side was paralleled by the rise of Jewish religious militancy in Israel.

5.   The stories, narrated by professional con-man Ricky Jay, are outlandish examples of tragic coincidence and intersections of fate.

6.   Two deaths could be a tragic coincidence, but three?