When I was in basic training we had a soldier kill himself while on bivouac training, two weeks away from graduation. He put his M-16 to his forehead and blew out the whole side of his skull.
We woke that morning to what I thought it was another blissful dawn where Drill Sergeants would detonate flash-bang grenades or fire M-16 rounds off because they forgot their alarm clocks. We all started looking around at each other when we heard all the commotion that would have gotten us in huge trouble otherwise, and knew something was wrong.
The news spread fast through the encampment, I went to go look and saw his brains all over the place. God, the things our minds omit when we thought we could never forget.