The story is a little different here:
http://www.freerepublic.com/focus/f-news/3491044/posts
That's a Daily Caller article.
It references this:
http://cbs12.com/news/local/woman-attacked-at-polling-center-in-jupiter
This appears to be the most detailed story:
http://www.palmbeachpost.com/news/woman-who-pepper-sprayed-man-polls-couldn-believe-hit/5DipqppJEba2v6SsEjnMAN/
They actually name the man, and interview witnesses.