A weapons instructor was accidentally shot by his 9-year-old student, leaving four children fatherless. Those four children have written a letter of forgiveness to the student.

We think about you. We are worried about you. We pray for you, and we wish you peace. Our dad would want the same thing.

39-year-old Charles Vacca of Arizona was teaching his student how to use an Uzi submachine gun.  The little girl lost control of the firearm and accidentally shot Charles in the head, a shot that was fatal.

Police watched the video that was recorded by the students parents and realize that it was an accident, so no charges have been filed.  But that doesn't make it any easier for either family.

Vacca's family wrote a letter to the 9-year-old and recorded a very touching video that aired this morning on ABC's "Good Morning America".

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