Cpl. Ashlee Jackson says Moore was among four hunters who had split into two groups. Jackson says Moore was walking with the youth in a cornfield when he was shot by another adult.
Moore was pronounced dead at a Rochester hospital soon after the shooting.
The DNR designated Saturday and Sunday as this year's youth hunting session during which only hunters younger than 18 are allowed to have weapons. The deer archery season begins Monday and the firearms season on Nov. 17.