Since I know you are all too cheap to pay for Newsday and this article is behind their pay firewall, I will sum it up for you - Darth Vader apparently missed his flight to San Diego for the Comic Convention and decided to rob a bank in Setauket instead.

Really, that doesn't need anything else to be funny.

The camouflage pants are a nice extra humorous touch, though.   H/T and photo Gothamist