Board Thread:General Discussion/@comment-208.180.10.179-20140828163225/@comment-6697950-20140828173430

You can't find any pics of him because there are no illustrations for him, since he was killed off off scene.

Though there is a slight description of him:

"On hearing that, Shino nodded her head. Shino knew of the 4th casualty, Garrett. He was a trendy guy who wielded an old fashioned Winchester rifle. Shino remembered the cowboy cap that could be considered his trademark and prayed for him silently deep inside."

So, basically, imagine a cowboy-like character.