Len Bias, RIP:

Today is the 20th anniversary of the tragic death of U. of Maryland basketball star and Boston Celtics No. 2 draft pick Len Bias.

Many experts, including Duke Coach Mike Krzywewski in the above-linked article, compare Bias' talent to that of his ACC near-contemporary Michael Jordan. While I doubt that Bias would really have been as great as Jordan, he would very likely have been an All Star-level player who could have extended the life of the Celtics dynasty of the 1980s.