Also, interesting tweets that predate his arrest in New Orleans and that appear to be from him are the following as of January 21:

INTERESTING TIMING; acorn suit against Giles and I filed today in federal district court

"To hell with the institution. Let’s chuck the institution overboard and start seeking the truth together

(That particular tweet appears to link to another page by a blogger who makes the same comments that appear to be referring to mainstream journalism)

Here are some other tweets that occurred in December 2008 that also appear to be originating from O’Keefe:

December 31

• 2008: Planned Parenthood VPs fired 2009: ACORN defunded 2010: Get ready cuz this is about to get heavy

December 27
 Hidden audio/video is the new gun: 1st grade teacher fired after being caught on book bag tape  (Twitter leads to this story that refers to two parents of a child who appeared to have taped a teacher clandestinely)

December 15

Brilliant: Activist Filmmakers impersonate Canadian govt and the Wall Street Journal in Copenhagen

(That tweets leads to this story)

Dec 12

Law & Order Episode: "Why put good works into jeopardy over a few dumb kids in some ambush video?"

(This link leads to a Law & Order clip of an episode involving a “right to life” case)

Dec 7

Here's how it works media & govt. You lie to protect your friends. We release more videos. You get egged. Want to play?

On the twitter page that arguably is defendant James O'Keefe is the following:
Name James O'Keefe

• Location New Jersey (his location as per the court documents)
• Web http://www.verita...  (which on promotions is a site associated with O’Keefe)