Jack Koolik graduated from a Jacksonville high school this week.  What makes him different from the other graduates?

Koolik is 90 years old. 

The World War II veteran dropped out of high school more than 70 years ago to fight in Europe.  Under a new state law, veterans who left school to join the military and were honorably discharged can apply to receive a Florida high school diploma.

Like the rest of his graduating class, Jack wore a cap and gown to receive his diploma.