Eckels, the main character in a sound of thunder

Eckles is a frightened man that cannot control his actions when put into a stressful situation. He makes a mistake by stepping on the butterfly, then trying to correct it he collects the bullets out of the dinosaur that had been killed.

hope this helps :)

because i have already answered your question several times, answering it again would be superfluous.

by elena

its probably fingerprint or personality