One , Fort Carson-based Sgt. Ernest Bucklew , 33 , was on his way home to attend his mother 's funeral in Pennsylvania , relatives said .
Sgt. Ernest Bucklew , 33 , was coming home from Iraq to bury his mother in Pennsylvania .
It was announced that Green will replace Park in the Dale Earnhardt Inc . No. 1 Chevrolet , beginning with the Winston Open at Lowe 's Motor Speedway next week .