Will he come back is a moot point. When he comes back is probably a given.
I agree with both responses. A lead injection at high speed with anything above and including a 9mm dose will do the trick. If you are not into extreme prejudice in such situations, try a live, havaheart trap baited with marshmallows or cat food, but even that includes disposal of the captive raccoon with a dose of lead. Never relocate a problem for somebody else to deal with.
You got a break this time.
Not only will the cat burglar coon be back, he, she, or it is by no means the only coon with eyes for your chickens. There may well be 2 or 3, to 2 or 3 dozen coons all living within striking distance of your coop. The closer you live to an urban area the higher the coon population.
Now what some of you fail to realize is that raccoons use latrines, they don't go just anywhere they please. The reason I think that this is so is because of the large numbers of round worm larva and eggs found in coon scat. This species of round worm is especially dangerous to humans.
http://www.google.com/imgres?imgurl...y_-VOE2yIixBLDcgfAF&tbm=isch&ved=0CB4QMygBMAE