Who was named AP NFL Defensive Player of the Year for the 1990 season?

What position did Devin Hester primarily play? Devin Hester is best known for playing with which NFL team? Which college was Devin Hester playing for when he entered the NFL? What jersey number did Devin Hester wear with the Bears? Who was named AP NFL Defensive Player of the Year for the 1991 season? Who was named AP NFL Defensive Player of the Year for the 1992 season? Who was named AP NFL Defensive Player of the Year for the 1993 season? Who was named AP NFL Defensive Player of the Year for the 1994 season?