Cracker and KB nailed it, but just remember that just because a dog has fear issues doesn't mean he was abused. It is possible that he was not well socialized with men (or black/dark skinned men) and that's why they're scaring him.. because he's never seen them before.
Make this guy toss him tons of yummy treats and you'll see things get better.
Make this guy toss him tons of yummy treats and you'll see things get better.